I think that Brom's dragon was blue and had the same name as Eragon's dragon.....
And that cat told him to go to that giant tree....
I bet Brom's old sword is under that tree.
That would be cool.
I bet Roran will go across the ocean, to seek support, after he gets a Dragon him self, which will be a male.
Eragon will get a new sword and will eventually kill the King and whats his face, you know his brother...
Katrina will get killed, and Ayra and Eragon will get together, or Vise Versa.