i also think RoF should never leave the WWI timeframe !!!
there is still alot that can be added to this game.

for myself, im actually not playing RoF - and have not bought the DH.2 (after purchased all other planes so far) yet................

i play only online, and the VOW "R" online war with IL2 brings me more fun with its much more different kind of aircraft - i actually lost interest in flying fighters to fight other fighters.......................but thats very personal.
i guess the most players are mainly interested in such kinf of online flying - at least thats my observation in the VOW "R" (and all other online events the last years with IL2)