More KDF ships, in general, probably depends on how popular/profitable the faction will be after Legacy of Romulus launches.
Been wanting to see an Orion Interceptor as a 'Small Craft' for a while for now. Perhaps something Ferasan as well to go with a proper ship for them.
As for abilities for lower tier ships.. I know those Nausican fighters("Stingers") still have that obnoxious 'Oh hai! You can no longer turn!' beam that doesn't show up as a debuff and cannot be removed and sometimes persists for several seconds after you destroy the fighter in question.... /EndRant
Otherwise, I wouldn't mind seeing some sort of neat mine layer console for a Gorn ship(maybe a 'net' that allows you to 'drag' a deployment of mines behind your ship).
For an Orion ship, perhaps some kind of console that slows the recharge of skills - a bit like the Subnucleonic Beam's debuff("Seductive Broadcaster", "Neural Inhibitor", "Entertainment Hologram Projector" or some such).