I have to strongly disagree with you there . The physics of rotary and radial engines could hardly be more different . Bolting the crankshaft vs the engine block to the mount resulting in having a massive gyroscope on your nose , cooling , induction , oil supply and valve action are all entirely unrelated between the two designs .
I am not trying to be difficult , but rather trying to point out that the developer resources necessary to bring your wish to fruition would be a massively greater task than one might think , from the aerodynamics of relatively flimsy structures , to engine modeling , to lack of real-world experience from which to draw , to the inevitable calls for assets and maps , fulfilling this wish would require a large-scale diversion from ED's core mission .
Breezily blowing off every objection with "pfft , this wouldn't require much for ED to implement" (or words to that effect) won't change those core facts .