Honestly, skiers can only get so creative, because they are riding on skis. Unless it becomes more common to do an equivalent of sliding solely on the front/back tips, skiing urban rails can only go so far as more spins on and off handrails.
Skiing urban shit looks goofy as hell because of the amount of room you need with the whole wide stance that you all seem to love.
Honestly, and as much as an insult as it is, skiing is simply rollerblading on snow. Jibbing on skis is much easier than a board, you have your two feet to maintain balance, not a board.
And for the numerous people assuming the 'simple' jibs they so commonly see snowboarders doing, those are some of the most technical things you can do. Nose/tail presses (5-0) are much more difficult to do than and boardslide, even if it might not seem like it (although now there's reverse camber boards that are pretty much training wheels, but a different discussion not for here).
Put simply, skiing can only become 'creative' to a certain point due to its physical capabilities, which I feel have been met. Whether or not its the ideal thing you all wanna see your sport going, the only form of progression that will be coming are larger spins/corks/etc.