IMO CS would be better off sticking to classic steam gauge aircraft because CS is extremely poor at system programming for modern EFIS aircraft, as proven by the 777 & the 757. They're going to stumble hard if they try and do a FBW Airbus.

Classic "Steam gauge" aircraft:

1) 747 Classic (CLS version is awful, RFP cannot run on FSX)
2) DC-10
3) DC-8
4) Convair 880/990
5) BAC 1-11
6) Fokker 28 (Jet)
7) Fokker 27 (Prop)

Modern aircraft:

1) Saab 340 (mostly steam gauges)
2) Dash 8-100/200 (Preempt **** again maybe?)
3) Sukhoi Superjet (I think CS understands Russian)

More:
1) Dornier 228
2) Dornier 328/JET
3) Xian MA60
4) Hawker Siddeley 748
5) Embraer EMB-110 Bandit


All other aircraft I can think of are already being developed by others.