Will there be a spinoff with the characters as Suppets (Simpson Muppets)?
Assuming you aren't asking that as a joke question, I doubt it. The Muppet portion was descent and I do think that they could expand upon it or one of the other non-cartoon animation formats (stop-motion, claymation, CGI, etc.) to make several possible interesting full 30 minute episodes. However, the Simpsons (regardless of format) are still going to be "the Simpsons" regardless of how you slice it. Changing the format is a "band-aid" at best. I don't think the novelty of the change would be enough to warrant a spin-off that in essence would, aside from the new format, be a retread of the animated characters/stories that many already feel have overstayed their time on TV.