Well, look at all the 80's shows that they are making movies of now. You have Miami Vice, Dallas is in pre-production, Magnum PI is being talked about, among others, you'd be stupid not to at least think about it. I mean, what about an adventure where Nanny gets kidnapped or something. They could even do the CGI version of it. Where the Muppets are in CGI, but everybody else isn't. Kinda like a Who Framed Roger Rabbit. Besides, it's all about money, and how much it'll cost to shoot. You have a lot of muppet kids runnin around it might cost more to do that than CGI. I dunno, it sounds good though.
Daniel