I don't think we'll see actual cameos of characters from old games, more like the above post I made where they made Nael van Darnus very close to Sephiroth... but then again in that video posted on the forums about how to pronounce stuff Fernehawles says something about Xande being in the Crystal Tower, so maybe they will?
Edit: Maybe Hydaelyn is actually Hollow Bastion before the Heartless get to it, and eventually we'll have all the Final Fantasy worlds merge together there! Kidding of course.
Edit Edit: Personally I'd rather see them stick with vague references than full blown cameos, though in some cases it's alright for recurring characters. I can definitely say I was super excited when I saw
But if they just straight added characters like Cloud Strife or Kain Highwind I'd be a little more disappointed.
Edit: Maybe Hydaelyn is actually Hollow Bastion before the Heartless get to it, and eventually we'll have all the Final Fantasy worlds merge together there! Kidding of course.
Edit Edit: Personally I'd rather see them stick with vague references than full blown cameos, though in some cases it's alright for recurring characters. I can definitely say I was super excited when I saw