The whole "world is ending" plot is a desperately overused motivational crutch, and severely undermines its potential to be original and enthralling (at least for me)
Don't get me wrong, high stakes are great and can do a lot to help the story motivation along. But 80% of the time its apparent from the get go and never goes far beyond that in most games. Is it so hard to introduce high stakes without falling onto the ever growing pustule girth of motivational stew that is "Oh Em Gee, world is ending!"?
Its just lazy writing if you ask me... Completely lack luster and mediocre. Jamima Puddle Duck offers a more diverse plot.
*Edit*
Yeah I realize we dont 'actually' know much about the story yet, but if gaming history is anything to go off my point stands firm.
This trend in story telling isnt exclusive to RPG games you know?
Harry Potter, LoTR, Star Wars, all followed the same trend.
For some reason the main character is "the chosen one" and will go forth to defeat a bad guy that no one else can.
Its just how high fantasy is.