Re: FF connection to Earth
I hate to say it, but if Nier is canon, FF is directly connected;
Spoiiiilllerrs for the Nier series:
Ultra simplified (and no I don’t care enough to check into detail because it’s awful in the first place, despite the games individually being quite good)
Drakkengard-> Dragon warps to modern times, somehow, and gets shot down by a fighter jet…
Nier 1 -> Which causes a disease that wipes out humanity, which get replaced by androids
Nier 2 -> which get into a never ending war with alien invaders, which also are dead and have robots of their own that mimic human societies, for some reason
FFXIV -> which after completely resolved and somehow manage to replicate parts of Nier 2 for…reasons.. on the -not even the main plane of existence-.
That final boss of the Nier raids, with the trains? Yeah that was meant to be faux Tokyo.
Re: Traversing the Rift
Also, I think Gilgamesh is canon to be only one guy across all the games. That is the guy we mess with in theManderville line is the exact same guy you mess with in Final Fantasy 5, as opposed to just a name-recycle (see Cid/Biggs/Wedge/etc)
I believe he has the ability to move between worlds, albeit I’m not sure he can choose a destination.