This scenario is 50/50
A: EA will throw a fit and order a C&D cus they are assholes like that.
B: They will let you do whatever you want, but would have to sell the rights to them so they can so whatever they want to it, and chances are, you won't see a dime. They have done this before.
C: They will like your proposals and employ you under their name just so they can butt heads with China and it's upcoming DKO.