It'd be great if Disney did promote 2010 as the year of the muppets, especially since that's the 55th anniversary. We know that Disney plans on releasing the next movie next year, and it's rumored that season 4 will come out next year, but there are a lot of other ways to promote the aniversary and the movie if it comes out in 2010.
Most of the Muppet merchandise made in the last few years have been exclusive to the Disney theme parks or online retailors... It'd be great if there were more mass market Muppet merchandise. Maybe some t-shirts and bumper stickers representing scenes from The Muppet Show and moviews, with classic lines accompanying them (for example, a shirt with Beauregard in the taxi drivers seat, saying "what color are their hands now?").
I'd like to have a variety of new Muppet books. Some informative, some illustrated storybooks. And more comic books wil be welcome. Maybe The Muppet Show Book could get a rerelease, and there can finally be a sequel.
Would it be considered weird for there to be a 55th anniversary special?
In addition to TMS season 4, there should be some more productions released on DVD (besides as bonus features on season 4). Maybe The Muppets at Walt Disney World or the "Tales from Muppetland" specials. Perhaps the movie or anniversary could be promoted with blu-ray releases of TMM and GMC.
It would be great to have a new action figure line. Part of me wants it to be different from the Palisades line, while part wants it to be similar so that characters who weren't made as figures would be comparable in quality and scale. Maybe there can be a new line of plush and dolls.
Video games would also be welcome, as would a board game.