I saw this youtube clip via boingboing
http://www.boingboing.net/2009/04/01/german-retrofuturist.html And I thought, if I ever set a move in the future I think I wold have the people in the background dancing a modified marital arts kata. That seems more plausible that any weird "future dance" one could come up with.
Well that or all e-mote dances from popular video games.