I know I am, seriously, we won't know a thing until this time in 2013. Right now just have fun throwing around ideas and having a laugh.
J.J. may or may not be giggling at the wild speculation, but I'd bet that Bob Orci is mightily amused by it all. I'm not so sure he hasn't started a few rumors here and there, just for the lulz (and yes, I find that notion pretty amusing, myself.)
I am just glad they're paying attention to the fans. I am sure they enjoy the speculation and are glad to see us speculating...it means we're interested!
Actually that's probably true, we saw lots of little new aliens throughout the first movie, and the first canon appearance of Arex's race. I wouldn't be at all surprised if we get at least three or four new races in the background of this one.
The Kelvin bridge, he's at one of the forward stations, the camera briefly focuses on him when Neral (?) hails them.
Dang, I didn't get a chance to buy the book when it came out. Funny though but maybe Arex is a freak to his race, like a chicken with three wings, food for thought.