I think It'll be a "nunchuk" game, where you do basic steering and accel/decel with the analog stick in one hand, then handle all the flips/twists/sharp turns with the revmote.
I mean, you could get really freaky naughty with it and everytime you hit a ramp, actually twirl your revmote in the air like a freaking baton, and if you don't catch it, you bail in-game!....that would be kinda cool, methinks.