What I would really like to see, is a more motocross oriented 4X, more riders (maybe go up to 6, or even 8), gnarlier tracks that are actually rough and need a dually.
Its obvious that corners have a huge fault in our current 4X tracks, I think we need to get rid of dual berms as they get rid of any possibilities of passing unless someone takes a wrong line. (world champs anyone?)
If we could have more natural stuff in 4X I think it'd be a lot funner, if we took some track inspiration from the Europeans, and got some BMX guys to race (Most love 4X) we could have a decent sport, right now i'm considering selling my 4X bike due to no races or places to ride on as BMX is becoming more appealing every time I ride it.