Why?
Dream works has 2 films out a year now, Nintendo is making movies through Universal, along with other IPS they want to push
I love the simpsons but when for "free" they have other successful IPs, why would you pay for more simpsons? I know many will point out Marvel but thats such a different beast.
Simpsons is popular but the MCU is on another level right now, so I assume that plus the fact the contract helps them block Disney from brings certain characters to Florida is why they keep marvel but Simpsons? They can make as much if not more money with other Ips and not be pushing something they will never own.
Just my two cents but I think simpsons are pretty much DOA after Nintendoland came in and made more money then any other land has since Potter