Here's a paraphrase of the good parts:
Expect some Star Wars style space combat that harkens back to the arcade stylings of the original game.
Rail-gliding makes a triumphant return!
An online co-op mode is "probable" but not a given
New characters making a debut include Cronk, Zephyr and Willie, 3 spastic, argumentative robots who are a parody on the current console kings, PS3, Xbox 360 and Wii, respectively. Interesting!