Probably because Man of Steel filming schedule, Amy didn’t attended the Muppets panel at D23 Expo. The panel was attended by Jason Segel, Kermit the Frog and the lovely Miss Piggy.
Coming Soon has some highlights of the panel:
In the first clip Segel, Adams and Segel’s best friend Walter (a Muppet) drive around Bel-Air, looking for Kermit the Frog’s house. Unable to find a doorbell, Walter tells Segel to pick him up and throw him over the fence despite Adams’ protestations about it being electrified. Sure enough, Walter is electrocuted. Just as he tries to convince Segel to throw him over again, the silhouette of Kermit appears to the sound of a heavenly choir (which is actually a bus with a touring church choir inside). Walter passes out from the shock.
Walter wakes up inside Kermit’s home with Segel and Adams watching over him. Kermit asks what he can do for them as his butler 80s Robot appears with a silver platter of Tab Cola and New Coke. Kermit insists they don’t need anything, and 80s Robot rolls away, bumping into walls and furniture while muttering catchphrases like “gag me with a spoon.”