The problem is that without sensory motion the means of portraying movement in flight are very scarce. The game would be limited to sounds or movement of the cockpit as there are no points of comparison in the air.
Even the other aeroplanes would be too small to give any real perception of movement except in the extreme cases. As it is we have kind of a turbulence with other planes as they bounce around a little with lag and network errors.
It might be beneficial to model propwash though. But if that happens, bomber gunners need to die to the first direct bullet entering the gunner position. Only that way the historic position in under 50 yards where the propwash effect is gone would be possible to obtain.