At this point I'm positive that what the Reaver is now the NC fighter.
It looks like there will be no gunships as a separate vehicle class, and a fighter with appropriate customizations will act as a gunship. And the TR Mosquito sure as hell looks the part!
I have to know what that NC vehicle is... My guess would be the Liberator (if bombers are empire-specific, then the name fits the NC like a glove), however the bomber was supposed to be a 2-seater, and this looks like it has 2 seats plus a rear turret with a canopy of its own. Might be an old concept render, though.
I can't say that I dig its design (the front reminds me of the Caldari Osprey from EVE) - it's much too verical and the canopies are too far apart for my taste (and for my militaristic side), however I won't be playing as the NC.