There's likely a lot of burnout, I know I have been considering hanging up my hat a few times recently. I think it will happen sooner than later. I've been playing since day one and I am realizing it never has lived up to it's promise. Being a completionist it bothers me that I can't have the Bambi ice rink even though the characters are long since maxxed out and sent home. Every platinum chest is a tease that ends up in a sun dial or something worthless even when cashed in for elixir. After spending all my elixir to get Davy Jones Organ, I now only have 12k of the 30k needed for Toy Story Mania, that is also going to be a grind. I can't even bother figuring out what 'costumes' I am missing, but I know Mrs. Incredible's is one of them and I am not buying some chest gambling trying to get it.
The only thing keeping me interested today is my love of the Steamboat Willie era Mickey and I am holding out hope they do something cool with it.