Here's how to get it done, call up Oakley, Armada, Dynastar, Rossi, etc. and convince them to send their top skiers to the World Cup Halfpipe events.
Then, because the top skiers are there, everyone will want to watch those events.
Then when World Cup Halfpipe comps become huge crowd pleasing events with some of the best skiers in the World, the FIS will submit the event to the IOC for inclusion in the Olympics.