I was always under the impression that the Rebel fleet was comprised of Republican era ships which were salvaged and maintained/modified by the Alliance because they couldn't get new ships.

I would love to see some Y-Wings with all their streamlined panels intact :

http://flickr.com/photos/rocketseason/sets/72157608098402281/

(one of the few welcome ideas in the new Clone Wars TV series) and some fresh off the production line X, A, B wings etc in the prequels.

I wouldn't even mind seeing some tatty ROTS ships in ROTJ:R but that's for another thread.

I would also like Jengo Fett to be Boba Fett and never remove his mask or be a child or be the template for the clones.

It would be nice to have one mystery guy in the saga remain a mystery.