I hope not. Too dysfunctional to make anything I'd personally enjoy. Also there's nothing about the Simpsons that fits with Disney branding. That's a loser IMHO.
No they aren't. How much do you suppose all the enhancements/improvements to the parks cost?
Star Wars Galaxys Edge will end up in the billion dollar range.
Now think of all the things that are coming and improving in the next decade there.