Screamscape posted this rumor today for Disneyland:
It sounds, one rumor going around the Disneyland Resort is WDI is in talks with Vekoma on creating a Tron Lightcycle themed version of their Booster Bike coaster. It’s just a Blue Sky idea right now, but I’m told the coaster system may have multiple launch zones to increase the speed of the ride as you approach and enter into a very twisted finale sequence. Sounds great to me.
This Booster Bike idea has come up on threads here in the past, some photos can be seen here:
http://www.coasterforce.com/index.php?categoryid=785
I know there was another bike/coaster concept where the track was hidden in a similar vein as Test Track and the vehicle could seemingly change elevation along the track.