Just started watching Star Wars Rebels with my kids this weekend, and couldn't stop thinking that the Ghost and Phantom should be in X-wing. I did some quick research on Wookieepedia and found that it should be possible.
http://starwars.wikia.com/wiki/Ghost
http://starwars.wikia.com/wiki/Phantom
The Ghost is 43 meters, which is 5 meters longer than the decimator (38) and 9 meters longer than the falcon (34). This would have to be a large ship as it is only slightly bigger than the other large ships but 20 meters shorter than the gozanti (presumed imperial huge ship) at 63 meters and half the size of the current smallest huge ship, the rebel transport at 90 meters.
http://starwars.wikia.com/wiki/Gozanti-class_cruiser
Not only would it introduce a new ship, but it would have a bunch of new crew upgrades.
The phantom is a no-brainer, but could have some interesting interactions with the ghost, releasing mid-battle, or adding additional attacks while attached.












