Muppets Most Wanted didn't do well. I don't think it made back production and marketing costs. However, The Muppets in 2011 did well and made money, but these movies have never been hits since the original. None of the 7 other movies made half as much as the original when adjusted for inflation. I love the Muppets, but the show has been gone a long time now, and the characters aren't a large part of our culture anymore.
I said all that to say this: I am sure Disney is evaluating this franchise to decide if it needs to be mothballed. We may not see anymore movies. It is hard to tell.