i have been skating for 12ish years and my bike has pretty much takin over all skate time in the past year. due to most major citys ruining all the good skate spots, a lot of skateboarders are getting into track bikes. its just as much fun and you dont need any special plazas, ramps, ledges,ect. to have a good time.
i'm not sure if this is "the new skateboarding" but i do know that skateboarders are going to take track bikes and do things on them that you never thought possible.