Disney just bought Fox for a $52.4 Billion dollars which opens the door to X-Men, Fantastic Four and Deadpool. both the current versions and any MCU takes. This means things like Deadpool can both stay the way they are Disney can’t stop movies all ready in production but they can however reboot or rework for the MCU Deadpool 3/ Deadpool’s ending. Being that Deadpool is a money maker who stole MCU stuff to have in the first movie I’m guessing reworking would be in Disney’s best interest. Disney has also bought Han shooting first as Fox owned the 1977 version of Star Wars. Disney does not hold the rights to things like Gotham however and will must likely be requested to go back to the WB much like the Star Wars The Clone Wars.