I wouldn't be surprised if they extend the Early Morning Magic to EVERY park:
I mean why not? They can open a small part of the park early and offer a breakfast and people will probably gobble this up. (Especially the Epcot one to avoid long lines at Frozen).
Mimicking what they've done at MK where they have offered three attractions and a breakfast (all within close distance of each other):
The problem is at the other parks if they offered THREE rides to skip in the other parks there wouldn't be much left to do in the park for the day. So they may just offer a ride or two and maybe a M&G or something.
So .. just a thought:
EPCOT:
Early access to Mexico, Norway (including Meet and Greet) and princess breakfast at Askerhus.
Hollywood Studios:
Early access to Star Tours, Launch Bay (including Meet and Greet) with character breakfast at Hollywood and Vine.
AK:
Early access to Safari, the Gorilla Forest, and Rafiki Planet Watch (with some meet and greets there) and breakfast at Tusker House.
Maybe offer the early morning magic cheaper at these parks than the MK one since you are getting less "rides". $50?
I think a lot of people would do this ..