FWIW, there are plenty of people who'd be happy to see them included. The ship designs (and the majority of the design aesthetics in general) were by far and away the best things about the prequels, and I'd really like to see some of the prequel and clone wars ships appear in game.
The real difficulty I have with them, personally, is that they're often an awful lot smaller than the equivalent OT-era ships - the N1, the Jedi Starfighter, the Eta-2-actis, the Belbulab, all of them are really, really tiny. Some of them are at armada-single-ship-squadron levels of tiny, almost. It would be difficult , I think, to include them on that basis as standard small-base ships. I'd like to see them inlcuded as 3-ship large base squadrons whose stats change as they take damage, perhaps - starting with low agi and high attack, and changing to high agi and low attack as ships from the squadron die.