- Acting for Two:
- Mihaly's granddaughters Ionela and Alma are both voiced by Saori Hayami in Japanese and Cristina Valenzuela in English, though Alma is never heard speaking unlike her older sister; outside of Voice Grunting, Alma's voice can only be heard when the Shilage Sisters are shown singing together with Cossette.
- According to Max Sterling himself in this thread at the Hard Light Productions forum, Sterling provides the voices of both Fencer and Seymour.
- Casting Gag:
- Dan Woren is again playing a commanding officer of a special air force squadron made up of convicts. Unlike that time, he's a total Jerkass here.
- D.C. Douglas is playing a mad scientist obsessing over gathering combat data. Unlike last time, he grows repentant by the end (and survives the events of the game).
- Fandom Nod: The fandom meme of Belka and its technology being responsible for every major conflict in Strangereal is referenced in-game when it is mentioned that Belkans are frequently stereotyped as conspiring warmongers. And, once more, Belkan technology and lingering resentment from the events of the Belkan War are major background influences that eventually culminate in the Lighthouse War.
- Fan Nickname: A subset of fans, particularly those on r/acecombat, quickly took to dubbing Tabloid, the then-unnanmed fighter pilot seen raising a cup to toast in the PSX 2016 trailer, as the "Cup Lord."
- I Knew It!: Many fans of the series theorized that Belka would play a role in the conflict somehow. And they were absolutely right.
- Jossed: Many fans had thought that the woman who jumped off the Space Elevator in the first trailer was Kei Nagase. While Nagase does appear in the game's ending, the woman who jumped off of the elevator turned out to be Princess Rosa Cossette D'Elise.
- Name's the Same:
- Mister X, the nickname for Erusea's Ace Pilot Mihaly, should not be confused with Mr. X, the nickname for the Super-Persistent Predator in Resident Evil 2. Coincidentally, the RE2 remake was released a week after Skies Unknown.
- The debriefing of the DLC 2 Mission Anchorhead Raid features an appearance of OADF Lieutenant General Shepherd.
- The Other Darrin: For her cameo at the end of the final mission, Kei "Edge" Nagase is not reprised by either of her AC5 voice actresses (Wakana Yamazaki and Karen Strassman). Instead, the role is assumed by Seiko Yoshida in Japanese and Julie Ann Taylor in English.
- Schedule Slip: The game was initially teased back in December 2015 while Ace Combat Infinity's popularity in microtransaction sales proved to be enough to start investing more time and resources in Ace Combat 7's development. Various Bandai Namco divisions pegged for the game to release in 2016, but were foiled when it was delayed to 2017. Then, shortly before 2017's E3, Project Aces announced that Ace Combat 7: Skies Unknown would instead come out in 2018, with no certainty on which time of the year they will release it. The August 2018 Gamescom trailer eventually revealed the release date as January 18th of 2019.
- Sequel Gap: No matter how you slice it, Ace Combat fans had to wait quite a while for this entry. Released in early 2019, the most recent "high profile" release prior to AC7 was—depending on one's views—either Ace Combat: Assault Horizon (2011) or Ace Combat Infinity (2014), with Ace Combat: Assault Horizon Legacy (a remake of Ace Combat 2) also arriving in late 2011/early 2012 and then receiving an Updated Re-release in 2015. The gap widens significantly if one only thinks of Skies Unknown as a sequel to the last numbered installment in the franchise, 2007's Ace Combat 6: Fires of Liberation.
- Troubled Production: As explained by producer Kazutoki Kono, the game faced serious challenges. The concept of the game sat on the shelf for two years due to Bandai Namco's focus on Ace Combat Infinity' free-to-play business model. After 7 was finally given the go-ahead, the project was restarted after the game's announcement at PlayStation Experience 2015. Kono was dismayed at the lack of progress or a clear design goal and felt that the game was "boring", which led to several delays. Executive Meddling resulted in multiple attempts to have Kono removed from the development team. It was only in late 2017 that the game began to take shape with the team expanding and Manabu Shimomoto joining as a second producer, but executives were skeptical and considered cancelling the game. Kono convinced them to let the game's development continue, and the team worked in a frenzy to complete the game.
- What Could Have Been:
- Brownie's character portrait was designed with short hair and sharper facial features◊ in the E3 2017 demo build before her final look◊ was settled upon.
- Datamining gamers have also uncovered several Dummied Out elements to the game still within the files. Of note are references to someone confessing to killing Harling; further investigation strongly indicates this person was the Belkan named Georg who Avril mentions near the end of the game, an extra defense zone during the Stonehenge mission, and mission elements that seem to imply that at one point that it would be Trigger himself who destroyed the Erusean satellite network in Mission 15.
- On the topic of Georg, his character is at the center of a rather large What Could Have Been: He was originally intended to be a mercenary fighter pilot contracted by the Eruseans to assassinate Harling and set Trigger up for the fall; you can actually hear some of his uncut lines during Operation Lighthouse Keeper (he's the one who initially shouts friendly fire and accuses Trigger). He would then experience a guilty conscience when Trigger saves him and Avril on Tyler Island, and would spill the beans about his role to Avril, citing the irony of being saved by the very pilot he had framed in the first place. Ultimately, however, the plot was written out in favor of the drone plotline and Erusea's electronic warfare capabilities.
- You Look Familiar:
- Karl, the Osean captain tasked with driving Lt. Gen. Labarthe to the rendezvous point during Mission 16, may sound familiar to anyone coming in from Ace Combat Infinity: He's Marc Diraison, the voice of AWACS SkyEye. Unfortunately, you don't get to hear him for long; the helicopter he commandeers near the end of the mission is blown to smithereens by a missile once you complete the mission.
- The LRSSG briefing officer heard from the end of Mission 10 up to the Battle for Farbanti in Mission 15 is voiced by Jamieson Price in English. Fans of Ace Combat 5 may recognize Price as the briefing officer for the Sand Island Airbase in that game, leading many to believe the casting choice is not coincidental. It's entirely possible this is the exact same guy as before, now lending his talents to the LRSSG nine years after the Circum-Pacific War. It should be noted, however, that the Japanese version is a subversion—said briefing officer is not voiced by Yuji Machi.
Trivia / Ace Combat 7: Skies Unknown