I tend to think Martin is correct when it comes to why UK is on the back burner. Entirely new construction is a major undertaking and they already have two big construction projects going in Epcot (and one outside the park). If the new Poppins film is a big hit, we may see them return to the idea of adding an attraction based on the film, but that would be down the road quite a bit. I'm still not sure how I feel about such a long-delayed sequel to a bonafide classic, especially when the little bits we've seen so far have such a different aesthetic to them from the original film. The cast is solid. I certainly want it to be great, but I'm cautious.