@Aliron
Personally I like your idea a little but I would say if anything to make that an additional bonus on top of the currency you already obtain while doing the zones. Whether this was your intended thought just made unclear or not, I'm not certain. But that would be my thoughts if they were to do something like that at all. I agree though regarding the Abyssea statement. Personally it's all well and fine to have something like abyssea just so you can have a different way to play the game and such, but to operate the entire rest of the game and Endgame type things on a near process would be a bit much.