The Muppets Land rumor is interesting. It comes up all the time, and yet now it would seem to make the least sense (to TWDC, at least) because The Muppets on ABC did far worse than expected. Out of all things, what would make them go with more muppets? It is possible that Pizza Planet is becoming Muppets themed so maybe Mama Melrose will follow? So that makes 2 restaurants and a show, and then they can add some little things and call it Muppets Land.
Here's an interesting tidbit from wikipedia, with an interesting interview video to back it up (click on the number 81 to get to video):
Since the D23 Expo in August 2015, rumors began circulating about the future of Muppet*Vision 3D at both Disney California Adventure and Disney's Hollywood Studios. However, at a September 2015 Dragon Con panel, Debbie McCllelan, the creative director for the Muppet brand at The Walt Disney Company and vice president of Muppet Studios LLC, dispelled these rumors, stated that the parks are outlining new Muppets projects. "We are looking at doing some of what they call 'pop-up' shows [with characters puppeteered live in the parks]," McCllelan said. "The hope is that if the [ABC] show does well, we'll have another movie." [81]
Only thing is, the ABC show did not do well. The first episode had over 9 million viewers, but the last had under 3 million, and you can find those numbers on wikipedia too. But a lot of other evidence and recent events lead to this mini-land happening, so maybe the poor ratings didn't throw a wrench in the plans, which would be an interesting surprise.