Whoa!!!!!!!! Man! I just read the 7 pages on the last thread and the 6 on this and... man! You guys are amazing! Just, thank you for taking my idea to the next level! MuppetFest was awesome and to just think of the possibilities for a new one, is just fantastic.
To kind of begin responding, while I think Muppets should be the biggest part, I agree with Pinkflower that it should have diversity with other such fandoms as Sesame Street, Fraggle Rock, Dark Crystal, Labyrinth, Dinosaurs, the Storyteller, Panwapa, Stuffed and Unstrung, anything!
I, too, agree Greenville is the best place for something like this, something that really honors Henson. Plus, it's really close to my home. We should definitely talk to the Greenville Chamber of Commerce first and then go on to guests.
Guests like Frank Oz, Bill Barretta, Dave Goelz, Kevin Clash, and Steve Whitmire would be my biggest choices, but they, at least at this point, would be somewhat implausible. Realistic choices would be Paul Williams (as... someone on here said), John Tartaglia, Noel MacNeal, Tyler Bunch, Victor Yerrid, Drew Massey, Louis Henry Mitchell and some other minor Sesame Street workers... possibly Matt Vogel, David Rudman, Peter Linz, maybe. Heck, Joey Mazzarino could be accomplished. And we could also easily get Amy Mebberson and the Muppet comic books writers and artists.
Speaking of Muppet comic books, for merchandise sellers, I would love for there to be a huge presence of Muppet comic books (i.e. The Muppet Show Comic Book, Fraggle Rock, The Tale of Sand) being sold and signed by aforementioned writers and artists. We should also have Sesame Street toys being sold, some of those new Muppet storybooks, and maybe some former Palisades Muppet action figure workers and designers could be there too.
I may be getting a little bit to unrealistic. But this is just my opinions.
For dates, Jim Henson's birthday, Jim Henson's death, and/or the time the next new Muppet movie comes movin' right along are all great dates. I greatly favor the latter due to, if we have enough connections, we could possibly have that sneak peek of the movie we so desperately would want.
I don't have much else to say except for that I love these great ideas your making! Keep on and MAKE IT HAPPEN!!!!