Unfortunately, this casting news doesn't come with any sort of plot details, or even a vague official summary. However, assuming nothing's changed from the rumors a year ago, the film will follow the usual storyline -- Kermit needs to reunite all the Muppets to save the studio. Unfortunately, while it's said to be titled The Greatest Muppet Movie of All Time, the 2009 script review didn't buy into that vibe.
So, until that official plot summary comes our way, I'm sticking to the hope I reference every time Muppet news comes up: It's all being changed into a rock opera with help from The Muppet Studio. THAT would make it the greatest muppet movie of all time. Need reminding? Hit the jump.
All of the Muppets singing "Bohemian Rhapsody:"
Or catch it here in sweet HD.
Beaker MeMeeing "Dust in the Wind:"
Or catch it here in HD.