Its been a year since ships got added to the game and while many odd ships like the Geonosians, multiple Jedi Starfighters, and no less than two different U-wings there's still no sign of some of the ...
A-Wings and TIE Bombers don’t really fit the way fleet battles work. They’re heavy bombers in what’s supposed to be a dogfight, so they’d just get eaten alive.
Maybe if there’s a ship raid somewhere down the line they could do heavy damage to raid bosses...