Freeskiing just needs more "big names" with gapers. Everyone knows who shaun white is, and Travis Rice is also pretty popular too. If freeskiing can get some more house hold names then I can see the the trend of popularity shift from snowboarding to skiing.
I think this can happen during in the next olympics. I mean just think about it, if lets say Wallisch wins gold in slope style, he will be getting interviews on pretty much every major television network. Everyone will hear his name and consequentially hear about our sport. But as of now, I think snowboarding is way more "popular".