There is a reason Disney has consolidated their resources on the MCU, Star Wars, live action remakes of their animated classics and POTC (to a lesser extent).
For every success, there is a:
Lone Ranger
Tomorrowland
John Carter
Prince of Persia
Mars Needs Moms
The Sorcerer's Apprentice
Alice Through The Looking Glass
Finest Hours
Even your middle of the road successes like Tron Legacy, Oz The Great and Powerful and the first two Narnia movies were considered disappointments by the House of Mouse. Tron Legacy was supposed to be a 3/4 of a billion dollar movie. While Oz and the 2 Narnia movies were supposed to do Harry Potter numbers at the BO. The only one that came close was Lion, The Witch and the Wardrobe at $745 million.
Franchise IPs are the name of the game now. I suspect Disney's shareholder's want as little risk to the portfolio as possible.