I just sketched out a loose outline for the climax of a novel, maybe the first in a series, and it's epic. Too epic. Final Fantasy epic. Different magics and characters come together in a complicated mess of world-altering mayhem. And it doesn't help that the characters all have Asian-sounding names.
Is this a bad direction? Is Final Fantasy a bad model for a book series? Or do I need to tone it down?
The story takes place in one region of the world, which is slowly being conquered, until the characters are driven into retreat. Conquering the region helps the bad guy to acquire a magical energy, which he hopes to use to create a cataclysm - something which should make the world better, but really won't. The good guys stop him, the bad guy goes kaputz, but bad things happen anyways and the region (though not the world) gets messed up. Future stories would take place in the aftermath of the climax. Oh, and characters may die.
Is that too much for a book? How long of a story am I looking at?