Shaun White is basically today's equivalent of what Tony Hawk was back in the 1990s.
Ubisoft tried publishing Shaun White Snowboarding (2008) and Shaun White Skateboarding (2010).
In North America, Skateboarding sold an estimated 280,000 copies on three platforms (Wii, 360, PS3). Snowboarding sold an estimated 1.38 million across five platforms (360, PS3, PS2, PSP, DS).
So the market just doesn't seem to be there on North American consoles anymore for a big-budget skateboarding game.
OlliOlli does seem to be doing well on Vita, but it's a much smaller-scale project with less than a dozen people working on it.
The studio that developed all three Skate games, BlackBox, was shut down by EA in 2013.
I doubt there will be another Skate game any time soon. If there is, it will have to come from a completely different team than the guys who made the original trilogy.