I saw it a couple of weeks ago and LOVED it!!! It starts out with Wishes and then moves on to music and narration from every Land in the park and most of the rides. The Star Tours part is sooo cool with lasers. Tinkerbell is all new and REALLY cool (don't want to spoil it, but you can PM me if you want more details). Also, make sure you watch it in or near the hub. Views of the castle and the Materhorn are important plus there are firewords going off from the buildings in Main Street.
I don't know if I would say "Wishes" on steroids exactly, but it does take the greatness of Wishes to the next level. I had to make sure to buy the Celebration CD so that I could have the music.