I, too, am very happy that this is happening. It's about time too. Now if we could just get seasons 4 and 5 out there...
Here's my list of what I'd like to see on the upcoming release...
*A retrospective special with the Muppeteers, Henson family/legacy, any of the surviving cast/crew
*Behind the scenes footage, including the big finale - if behind the scenes footage for that even exists; Tim would probably know (forgot to ask Earl/WasOnceErnie)
*Tonight Show appearance from 1979 w/ Kermit hosting
*All the trailers and TV spots, both US and overseas
*Deleted scenes
*Photo gallery (concept sketches, storyboards, pictures of the "Swamp Creature" that never made it into the final film)
*Muppets Go Hollywood special
I also hope this release will have two versions for us to choose from: the original, theatrical version and the extended UK version.