Primarily Saitek (and lesser with CH) has many nice switch boxes and instrument boxes, such as:
(YES, I know this is geared more for modern small aircraft, but the could be used for any flight sim)
(maybe when large multi engine aircraft get in, like B-17, He-177)
Will these be supported in future if not on release?
(that is assuming TrackIR and FFB sticks will already be supported)