It does seem that while Brian may not have much to do with them, they do still have people like Kirk Thatcher and Jim Lewis still actively involved in all things Muppet so they're able to keep an old-guard watch available to make sure the spirit isn't lost.
And sorry, but this is the latest news articles are really just non-news. They're all purely speculative articles that got posted somewhere and got end up spreading among other blogs and papers as an actual "story" They amount to nothing more than someone saying "well if the movie does well, it seems likely that a tv show would follow". Kind of like Richard Hunt sticking his hand out the window to predict the weather for the radio before finding employment with the Muppets.
They're basically week ways of keeping buzz on the upcoming movie for places that have already reported that news giving it another angle so they can print about it in some way again.