while i do think that Muppet Babies pretty much became a stain on the Muppet name, there are a lot of people out there...ones who are NOT the purists that some of us (me included) are. so from a business standpoint, it makes sense to me to have some of the Muppet Babies make their way into the eventual "World of Henson" (or whatever they're gonna call it) line. love 'em or hate 'em, they ARE Muppets...
as for Skeeter...well...i agree that an adult would be spiffy, it's hard to hold a license for something that doesn't exist, so maybe as a Muppet Baby, but only like that...unless an adult Skeeter finds her way into the new Muppet Show (start the letter writing campaign now, folks).