The game will get a Vita port
Luxendarc is a future version of the Final Fantasy 1 worldCompare the map of Luxendarc to the map of Final Fantasy 1 on its side, and you notice several similarities. Perhaps Luxendarc is set in the future of Final Fantasy. Due to continental divide and shift, Cornelia/Provoka could easily have become the Caldisla region, Lufenia exists as Ancheim, Onrac as Florem, and the Crescent Lake area as Eisenberg. Likewise the Carida Islands could have become the Crescent Islands over time.
Square Enix knows about the Demo Villager bug.They might have even intentionally created it. Not everyone is in the position for the Socialization Bonus. Carrying over 20 villagers from the demo is enough to unlock the village early for people patient enough. It sweetens the deal that people who use the villager bug may be thinking they're getting it "illicitly."
New Norende isn't fully on the physical plane.You start rebuilding it before you even plug up the giant hole crater that sucked in Old Norende. Not to mention, you only see it in your menu; it's not on the world map. It's even there when you move to each Alternate Universe or if you choose at the same level of completion in New Game+. It's like Traverse Town. Especially since people from Alternate Universe (ie, the Internet, or Streetpass) can join and help rebuild; it's actually a spiritual dimension closer to the world of the gods. Our World.
There are multiple Airys. The Big Bad created multiple versions of Airy to send throughout the multiple Luxendarc rather than there just being a single one. Similar to the Maenads from Final Fantasy: The 4 Heroes of Light the Airys are clones sent to awaken the multiple crystals, and 'Airy"s sister' was just one of the many Airys, only this one went renegade.
Specifically awakening the crystals is what screwed the world overAs in, going the whole five yards or whatever. Simply breaking off the darkness on the crystal would be enough to restore its power.
The Crystals are the physical manifestation of a healthy world's Life StreamCrystals contain knowledge, experience, prayers, and emotions of the people in the world. The Life Stream in FF 7 is more or less the same thing. I posted a fridge logic that points out that Asterixs are basically Job Materia made from the Crystals (which are the source of jobs prior to the creation of asterixs). By this logic I propose that in FF 7 we see what happens to the Life Stream when the world's Life is weak and sickly. Under normal circumstances the Life Stream would have formed natural Crystals but Shinra constantly draining the Life Stream stopped the Crystals from forming properly. At some point in the past FF 7's world destroyed their crystals for some reason and they were never able to reform.
Both endings were required to beat the True Final Boss.Good guys in the know gave just enough information for party to have a 50/50 chance of choosing to break a crystal. Having one timeline "shielded" from Oroboros prevented it from just doing a One-Hit Kill Total Party Kill on the planet on the other timeline that is attacking him.
Wa didn't sink. It was transported to the moon.Hence Magnolia Arch's naginata. Either a homunculus of the original Tiz; or else had his life-force replaced with alchemy to keep him alive. He was in one of Victor/Vincent's Alchemical People Jars.
The Stinger takes place centuries in the future.Its after Praying Brage which is two centuries after Bravely Default. The easiest way not to contradict anything would be after that.
Breaking the Crystals works similar to how it happens in Final Fantasy VThe machinery in Karnak and Walz hit just the right level of synchronisation to force the Crystals to put out more power than their physical structure could withstand, much like how Agnes can "over"-awaken them to shatter them. As the ending of FFV shows, the Crystals did eventually regenerate in that world too.
Airy's sister will play a bigger part in the sequel and so will her true form.Since, in the event viewer her stinger scene is named "Reunion Promise", and the fact she says "farewell for now", this is almost guaranteed. If she is an ally, she will either be ashamed of her true form(s) or use them to help.
The next Bravely game will have one of the fan favorite members from each of the job groups be a bonus boss...With good ole' That Person's Name Is... returning with them. OP predicts Barras, Khint, Einheria, Praline, and De Rosso.
Bravely Second will involve Time Travel as a plot element.If The Stinger does take place in the future, like one of the above guesses suggests, then it's possible that the first part of the game will revolve around getting Tiz back to his own time. Multiple worlds are a staple of the old-school Final Fantasy games that the Bravely series seeks to emulate, after all. The game will be spent jumping between the future world and the world of the first game, solving some new problem which has arisen, and reuniting with old allies.