Like I said in the OP, I do like Imperial Aces. I guess my main question is though, why did they choose to do two of the same ship, and why did they choose one that was already good and widely used? I think the two Imperial ships in serious need of an upgrade are the TIE Advanced and the TIE Bomber. Now, fair enough that when Imp Aces was released, the Bomber hadn't been out long, so a 're-release' of it would be too soon. Also, a bomber doesn't really fit the 'aces' theme. Still, they already knew at that point that the TIE Advanced was lackluster, and as an elite ship, it's the perfect candidate to be made an 'ace'. Why didn't they do an Interceptor and an Advanced at least? It just seems like a missed opportunity.
Honestly they probably couldn't think of anything to do with the Advanced. The Advanced is a tricky ship to improve. How do you improve it without encroaching on another ship's design space? They've probably been working on a fix for a while and according to the Devs, we should be seeing something soon.
As for the Bomber, the bomber is a really, really good ship and aside from maybe some new pilots doesn't really need anything. The real problem with bombers is ordnance and we're getting more and better options all the time.