As Im a scenarío junkie, HE111 !!!
On the Arena side I hope 109g10 returns, and the early 190a-series all without without weight-problems.
Spitfire Vd, Ki43, Me410,Do17,KI44,j2m2-3 are also on my top-list.
Implementing ENY-penalty using GM-1 and other fancy stuff in the options-list would make me cry and bow my head to Grapewine.