[[WMG:There are no countries as we know them in the Swat Kats universe.]]
There are only independent city-states, of which Megakat city is one of the more prominent. This explains why Megakat city seems to be one huge, self-sustained industrial and political entity with its own private military-police force embodied in the Enforcers.
* That would explain why Manx is so eager to attract foreign business and never seems to have to answer to anyone higher than himself.
* I thought that was outright said on the show? They mention a "Mega War" in the past and how Megakat City ITSELF won this war, so it's kind of obvious that Megakat City (and its foreign equivalents) are liken to Greek city states. Also the city is freakin' enormous--it stretched across the horizon in every direction. It's easily [[ComicBook/JudgeDredd Mega City One]]-sized at the very least, so being a nation onto itself is hardly outlandish.
[[WMG: There were once humans, but...]]
In the final days of humanity, human DNA was being combined with kitty cats to create a race that could pick up where humans left off. Of course, humans would be prehistoric to the kats. And ironically, most of the villains are distant descendants of Ted Turner.
* Actually, they're on another planet entirely. The original plan for "When Strikes Mutilor" had [[spoiler: the aliens who originally owned the ship wearing spacesuits all the time, because Mutilor altered the atmosphere within the ship to be toxic to them. After the Swat Kats left, they would've re-stabilized the air supply and removed their helmets to reveal themselves to be humans]].

[[WMG: Dark Kat killed Feral's wife, or someone very close to him.]]
That's why he was so insistent that he be the one to take him down.
* He used her as a human sacrifice to gain powers from an evil god or demon.

[[WMG: The series is the ultimate end result of the ''AceCombat'' universe.]]
Think about it: the Turbo Kat easily rivals - if not surpasses - many of AC's superplanes such as the Wyvern and possibly even ''Falken''. T-Bone and Razor might have gotten the idea from archeological digs that brought up centuries-old fighters, one of which was fittingly the F-14 Tomcat. How do they find out about this stuff? Their version of the internet, of course. How the Kats come to replace Humans on Strangereal is anyone's guess, though. Perhaps some of the Monsters-of-the-week can actually be traced back to "ancient" weapons from AC's world. This also means that there could be a city-state (as per an above WMG) trying to build and perfect an airborne fortress akin to Gleipnir, or an uberfighter that rivals the Fenrir (or rather ''is'' Fenrir).

* I guess Belka finally gets its revenge in this WMG. They wipe out the world and start anew... only with kats instead of humans.

[[WMG: T-Bone remained partially mutated after "Mutation City"]]
Even though most of the physical signs of his being a mutated frog-kat vanished, the anti-mutagens couldn't restore him entirely to normal. That's how T-Bone managed to swim at the end of the episode when he sank like a rock every other time in the water: he's still partially a frog. It's also how he managed to get to Razor so fast: heightened senses and increased speed and stamina.

[[WMG: Someone will finally buy the rights and make more episodes!]]
And they'll hire Creator/SamuelLJackson to be the voice of Commander Feral. It shall be AWESOME.
* I just pictured that. Imagine Feral staring at the MonsterOfTheWeek and saying, under his breath that "[[CatchPhrase We need Chopper backup.]]" Goosebumps, I say, goosebumps.

[[WMG: Instead of more episodes, whoever buys the rights will make a movie.]]
The movie will show Dark Kat's origin, hopefully as a judge since that's the official story that never made it into the series. Callie will date a Swat Kat. Steele and Feral will be two cases of AdaptationalVillainy: Steele will be a spy working for Dark Kat and Feral will join Turmoil's forces as someone intended for the series. Feral's case will only happen if they make a sequel. Mayor Manx will be portrayed as a former Enforcer who left the force to become a politician and, unlike the cartoon version, will [[AdaptationalHeroism strive to become courageous enough]] to honor the name of his war hero ancestor Blue Manx.

[[WMG:At least one of the bacteria monsters divided offscreen.]]
A FridgeHorror explanation for the blooper regarding the inconsistent amount of eyes on the monsters in "The Giant Bacteria" is that the third, two-eyed monster divided at some point, leaving a fourth (final) monster out there somewhere.

[[WMG:Nobody works in Megakat City's government except Callie and Manx. And it's because of the Megakat Tower.]]
Manx sinking a billion dollars into his stupid tower (the one in "Destructive Nature") has taken its toll on Megakat City's economy early in the first season, and it seems Manx's answer is massive layoffs and firings. This is most evident by all the menial jobs he gives Callie that a real deputy mayor wouldn't really ever do. This is most evident in "The Pastmaster Always Rings Twice," where Callie is at the museum preparing a press release for Manx about an upcoming exhibit.

Now, of course, this is just a narrative device to let Callie be present when the Pastmaster shows up so she can call our boys. But realistically speaking... why is she there in-story? I'm pretty sure if Manx wanted a press release from a museum for whatever reason, he'd have media staff for that.

The answer: Manx has no media people because he fired them. In fact, City Hall's entire press and public relations divisions have been laid off. It's just Manx and Callie in that big, empty building. Everybody else got fired to pay for the Megakat Tower's billion dollar construction, leaving Callie to juggle God knows how many different jobs at once in addition to being deputy mayor, explaining her crankiness towards Feral, who she already disliked anyway.
* No matter how good you are, there is '''''no freaking way''''' a single competent person can run a government by herself. A single, relatively small school is already a bureaucratic nightmare in itself. A government for an entire mega-city would need to have an even more complex bureaucracy to run the place. The only way this theory could possibly work is if there is extremely intensive automation actually running the city, with a mayor and deputy-mayor only needed to keep the ultimate decision in the hands of non-machines.[[note]]Then again, given all the times robots and automated system appear in the series there may be something to the whole extensive automation of government idea.[[/note]]
** I wasn't serious. I'm well aware that it takes a lot of people to run a city, and that the real reason the only people we see are Callie and Manx is because the animators couldn't be bothered drawing extraneous background civil servants. But I just thought the above Wild Mass Guess was an amusing idea. It was only a joke, and I never anticipated someone would actually take it at face value. However, having given it some thought, I'd like to revise my original theory and suggest that while more than just two people to run Megakat City, the government is still understaffed. I need only reiterate that Callie is depicted performing a lot of menial tasks you wouldn't normally find a deputy mayor doing. This, to me, implies a lack of underlings and gofers due to a shortage of staff (but not an outright lack of it like I originally suggested), forcing Callie to tackle multiple jobs for Manx.[[note]]Of course, the probable real reason for this is the writers had no clue what a deputy mayor actually is or does, and assumed it was a glorified secretary.[[/note]]

[[WMG:Steel's surname really ''is'' spelled with two E's, and "Steele" on his nameplate is a misprint.]]
Kind of like Sheriff Dollard's badge saying "Dullard" in ''Film/ToWongFooThanksForEverythingJulieNewmar''. Steel(e) insisting on his correct name spelling in "The Wrath of Dark Kat" could be a nod to the fact everyone spells his name wrong with an "E" at the end, even on his nameplate. This would mean the spelling in "Enter the Madkat" isn't an error by the writers/animators but a joke about how the other characters can't spell Steel's name correctly.

[[WMG: The show will get a [[ContinuityReboot Reboot]]. Or, a SpiritualSuccessor.]]
A lot of good shows are coming back. I wouldn't be surprised if this did. Also, if it turns out to be a SpiritualSuccessor. Then, it should be that the Swat Kats have evolved to a defense team. Besides T-Bone and Razor.
* Or it could be a SequelSeries where the Swat Kats have taken over the Enforcers after Feral has left (or got kicked out). Felina is the new commander with T-Bone and Razor in charge of a squadron that handles the same stuff they did back in the day, but with better equipment and a full array of support vehicles all done in the Turbo Kat's colors, of course. MerchandiseDriven isn't necessarily a bad thing.
** Okay, this is just BEGGING to be made into a fan fic. Especcially since all this could actually work in-universe if Callie were to become Mayor (not to hard a stretch, considering she's already the mayor in everything but name).

[[WMG: The Dark Swat Kats are also disgraced Enforcers.]]
After Feral ruins their careers like the mainstream Feral did to the protagonists, they also figured out they could use spare parts dumped at the junk yard. Unlike their counterparts from the main dimension, they let their hatred of Feral overpower their desire to stop bad guys and it led them to a FaceHeelTurn.

[[WMG: Mayor Manx's MirrorUniverse self becomes a competent politician after Dark Callie Briggs is arrested.]]
Out of fear that his next deputy is as dark as her, he refuses to trust him or her with any part of his job even if it means he'll actually have to do everything a Mayor is supposed to do.

[[WMG: The Swat Kats will use the dimensional radar again and it'll send them to our dimension.]]
They'll be shocked at seeing humans; seeing a world where cats never evolved beyond pet status; milk being sold to children; and catnip isn't a controlled substance. They'll also find out it's from our dimension that Katscratch's gang used to get their supply.

[[WMG: The Pastmaster will bring Red Lynx back.]]
He'll restore the ghost and/or bring the original from the past. He might even send technology from out time to Red Lynx to change the war's outcome and thus erasing the Swat Kats from history.

[[WMG: The people from the "bright and shiny" future know the Swat Kats' identities.]]
Since it was a BadFuture where the Swat Kats perished in battle, someone might hav examined the bodies and identified them as Chance Furlong and Jake Clawson. The resistance group merely saw no reason to mention it.

[[WMG: Feral knows who the Swat Kats are, he just pretends not to, to give himself some plausible-deniability, since they can get away with stuff he can't.]]
In fact, Feral not only knows the truth, but he created the Swat Kats on purpose.

Let's go back to the beginning when Jake and Chance were in the Enforcers. They were the best pilot/gunner team Feral had. However, Feral runs the enforcers in a very by-the-book manner, and it's probably held them back on more than one occasion. Then Dark Kat shows up, and in a totally uncharacteristic moment of glory-hogging (he usually denies to admit the Swat Kats helped with the villian of the week, but I never saw him act that way in combat), he bumps their jet (despite Feral himself being an excellent pilot) and knocks them into the Enforcers' Headquarters.

Now he probably didn't intend ''that'' much damage, but it accomplished his goal. Now you've got two people who owe several million dollars to fix the building. Why would you send them to a scrap yard, ''completely '''unsupervised''''', to work off their debt? Because Feral knew they wouldn't be able to just stand by and do nothing, and he also knows just what kind of scrap ends up in that yard.

Fast forward to the present. Feral always complains about their vigilantism, but he has never once fired on the Turbokat while the Swat Kats were at the helm (alternate universe excepted). He also didn't seem too convinced when Hard Drive as T-Bone threatened the city in exchange for money. It's as if his pursuit of them to "uncover their identities" is just an act - a means of keeping them on their toes, perhaps?

Not only that, but the technology in Megakat City is ''absurdly'' advanced. I find it hard to believe that Feral is never able to track them back to the junkyard hangar. Even if there was a jamming system in place, the junkyard is the only thing out that far in that direction. Just watching which way the Turbokat flies a few times would clue him in.

Then comes Felina, the niece that he's super protective of. He's pretty much always with her except for when she sneaks off, but he doesn't put up too much of a fuss when she goes with the Swat Kats.

Finally, let's not forget when the Metallikats learned the secret identities and offered them to Feral. He could've gotten the info from them and still arrested them, or have Dr. Hackle get the info from their computerized brains manually. But no, he neuralyzed them, making sure no one would know their identities.

So why did he do it? He knows that as the law there's only so much he can do, so he put the best team he had in a position to work on their own. He also arranges for a bunch of high tech goodies to wind up at the junkyard without being decommissioned (missiles, etc.) to keep them in business.
* There are two fic out there who agree with your theory (though the second one is more of a plan between the 3 of them, but whatever): Paying a Debt by Bookworm Dragon and All You Think You Know by turbomangus

[[WMG: Dr. Zyme Survived in "The Giant Bacteria".]]
The bacteria monster seems like it gets distracted from grabbing him by Feral's helicopter, so there's a chance he survived, although it may have touched him, and assuming the creatures have corrosive elements in their skin (or whatever purple blobs have that passes for skin) which aid them in absorbing prey, Zyme was probably seriously injured and probably [[BodyHorror partially deformed]], resulting in him living a reclusive existence with a NightmareFace that's AFateWorseThanDeath. Driven insane from the trauma, the once gentle-hearted scientist becomes a villain, but one who is only interested in seeking vengeance against Dr. Viper.