Fans of Tron were treated to a special screening of the new trailer from Tron: Legacy last weekend.  The lucky fans participated in a viral scavenger hunt to be eligible to see the new trailer, which will be publicly available when the new Disney / Tim Burton Alice in Wonderland opens in theaters on March 5th.

The trailer (naturally) is in 3D, as is the film which opens December 17th, 2010
Not surprisingly, there have already been rumors of sequels and spin-offs

Disney has also released teaser pics from the upcoming trailer via the film’s Facebook fan-page (1 per day) leading up to the new trailer’s release on 5/5