I think that the success of TFA could certainly have allowed them leeway for creativity, but given the choice between assured success and possible risk, they'll take the money. After all, they chose the safe, if unoriginal route once, and it's worked out ridiculously well (unless they really had even more success in mind)...clearly the safe route is safe AND profitable...why mess with it?
Exactly. Disney will have zero interest in taking risks. It's not something corporations can do very well.