Ryan McAvoy said:
I don't wanna see new republic Star Destroyers. They're too associated with evil to suddenly be good. Imagine a shot of Luke standing on the bridge of one, he'd look like a Sith lord simply by association.
I wanna see more of the Mon Calamari and Medical Frigate style cruisers we got a glimpse at in ROTJ.
These things look pretty cool... (I would lose the red though IMO)
I think The Clone Wars and the prequels are pervasive enough among the younger audiences to let them get by with Star Destroyers for good guys. In my eyes, probably affected by SE color timing, a Star Destroyer isn't really really evil looking until it's that lighter grey, almost white color. Much more dangerous feeling. I think the darker greys and stripes do a lot to make it feel less evil.
Keep in mind, if they indeed do have the original cast return, that's likely a 35+ year gap since Jedi, so I could totally see only a few remnants of commandeered ISDs and such. It's not really that big a jump to have new capital ships by the time of Episode VII.