Since Disney Junior just started a YT series that has the current Muppet Babies characters as puppets, I think we should expand the article on the puppet versions of the Muppet Babies to include these. Also, since the puppets are voiced by the cartoon voice actors, should their pages go in the Muppet Voice Actor category?
I think Clifford meant just Muppet Characters (as in now being a Muppet), not how we've defined it as a universe category, especially since we're otherwise treating Muppet Babies (old and new) as its own thing; we didn't count Skeeter until her Muppet Show comic book appearance. (For the record, Disagreeable Sandwich was added here without discussion or explanation, although the sort of Jim Henson Hour appearance probably counts more than The Cosby Show).
My own feeling would be to handle it the way we have the puppet versions of the older Muppet Babies: a separate page for these Muppet versions (which would be categorized as Muppet Characters), rather than adding the label to every Muppet Babies page. Or even just update that page with a section on the new characters/versions (and puppeteer info when/as we find it). It's already in "The Muppets Characters" by virtue of the original babies appearing in Muppets Take Manhattan, as well as Muppet Characters, so no category changes needed (and we've done that in other instances with characters who are mainly Muppets but have had animated versions, and vice versa, a separate page for the other form).