To the OP, I feel your pain buddy.
I thought that we might have gotten IG-2000 for IG-88 and maybe the Aggressor for IG-86 as it could have used the same model with a variant texture.
The Ebon Hawk for 47 is a bit too much of a stretch as it would bring another 'discouraged' EU name into the game and 47 was never actually the pilot.
I was also hoping that Grievous would get his fighter too (he's too rare to be a worthwhile commander from a dev perspective and I agree with the earlier suggestion that Gunray will take the Separatist job).
The fact that none of these things appeared makes me think they're simply holding them back. Most of the updates we get are developed months in advance of release. They probably have nearer 60 ships coded but opted to give us a shallow but quite wide spread in the initial release.
I think we'll see character releases of CW-era droids first and they'll flange them into being crew for CW-era droid ships...