Cheapest could work, no doubt about it. As long as it doesn't need too many holes patched up and too many references to update. Other than that, I don't think the time is right for something that experimental. Maybe next film. It relies on quite a bit of Monty Python-esque absurdist humor, and it would work if done right. But then if it doesn't it comes off jarring and strange instead of wacky and weird. Then you wonder if Jim and the rest abandoned it for a reason. Sometimes concepts sound better on paper, and lose something in translation. It could be a good fit for the Muppets, but then it could just turn into a joke that the novelty wears off very fast.