Well, if since it's near by... Why not a re-introduction to the one and only UNCLE DEADLY!
Kermit, Rizzo, Fozzie, Gonzo, and Scooter are looking through some trunks in the old muppet theater. Kermit picks up a picture of the old crew, and notices a blured, blue-ish grey evil looking being. He tries to forget it, but soon, Gonzo, as luck would have it, unlocks a trunk, and finds an old cape, and mask. Similar to the one George scared them with.
Sweetums, and the other monsters are getting roudy, and Kermit goes to try and calm them. Gorgon declares the return of a monster. Boppity agrees. Kermit does a take to the camera and makes the crack, "Why can't these guys be more kid friendly... like the ones on a certain street I know..." He then decides to do a HALLOWEEN SHOW! Yay. In the middle of the show, Rizzo goes missing, then Scooter, Fozzie, Rowlf, Clifford, and the others, leaving only Gonzo, Miss Piggy and Kermit and... the MONSTERS. Then, a familliar voice is heard, as Uncle Deadly swoops from the ceiling, and cackles, claiming his return with errie smoke. He then sees Statler and Waldorf... and sighes. "Those two... They where here since I was killed on stage, 50 YEARS AGO!" "And you still stink! DOH HOHOHOHOHOHO!" Kermit would ask where the others where, and Deadly shrugs. "It's halloween. Free candy."