The "extended" UK version of the Electric Mayhem's intro scene is missing a couple of lines:
It skips from
: Zoot, sax is your axe,
to Animal's intro while omitting the following lines:
: Uh-oh, Zoot skipped a groove again.
: Wow, like, I'm Janice, I'm lead guitar, for surely.
If they decide to include an extended version of the Electric Mayhem's intro and Kermit's plot summary with the visual footage, it would probably be best to make a composite scene from the US and UK versions, retaining all the dialogue from the band's intro, along with the flashback clips of Kermit's and Fozzie's adventures.....
The Muppet Movie - Dr Teeth Reads The Script (Extended Scene) - YouTube