Going to go against the grain here, but since it's America's 250th birthday next year, I think it would be awesome do have a patriotic themed Springtime Surprise. A Sam Eagle Muppets run or challenge as part of it! It would be nice as a "Glorious 3 Hour Finale" run to the now cancelled MuppetVision 3D show and might lineup with the opening of the new Muppet Coaster overlay in Hollywood Studios.
While an all Muppets salute to 250th USA Birthday would be epic, even a mix of Sam Eagle with Patriotic Mickey & Minnie, Figment, Huey & Dewey & Louie, Chip & Dale or even Patriotic Stitch would all be fun! Heck, even the Country Bears would be pretty darn sweet!