Quote Originally Posted by IfritReborn View Post
Jenova can very well make it's way into the game, not hard, and won't conflict with Eorzea lore at all seeing as how it's an extraterrestrial being
Pretty much what he said, Jenova was not originally from Gaia, and as others have said, it'd be easy for the Garleans to "discover" her body in some crater or excavation site like they did with Ultima Weapon. And just as well, since Jenova is an extraterrestrial with the capability of interplanetary travel, its quite possible to see Jenova make an appearance in Eorzea with no negative impact on the lore, however if Jenova does make an appearance I think she'd be best off as an optional side boss instead of being a part of main story. I think it'd be pretty cool to see Jenova make an appearance with the new graphics vs FFVII's, she's creepy as hell but who cares!? That's half the fun.

Or another thought, Jenova landed on Dalamud before it fell and is now lying dormant somewhere in Mor Dhona.