I don't think I said I thought that based on just one page not mentioning them. I was simply saying it would have been good to have seen such a page (maybe see what some specific clips featured will be), but also noted that it could be like Elmopalooza and not have clips at all.Yeesh with all these crazy jumping to conclusions and such. One page has Elmo/Abby dialogue - must be all about them! Page doesn't mention the use of archival clips - must not be any!
Part of that thinking is with all the returning cast members, making me wonder if there'll be much time for them all to really do something (of course we also don't know that this'll just be an hour-long special; it probably will, but we don't yet know it's length).
There's also a large amount of old school Muppets returning, but most of them will probably be silent, I assume there'll be a massive crowd scene (like at the end of 20 and Still Counting). But bringing back old puppets without giving them dialogue seems more feasible than asking an actor/celebrity to appear without dialogue.