I firmly believe, the tricks/combos of the mid 90s, suspecially the scuffing ones -- provide a perfect supplement to the rolling and wicked fast spinning tricks currently dominating today's era.
This of course assumes flatland wants an audience and therefore substantial sponsors/growth opportunities.
The combo I want is a backside walk around to perverted boomerang to decade
idk about going "backwards" but i do agree that some tricks are being under utilized (as mr. archon said)