My guess is that some of the big publishers are going to wait and see whether consumers accept DRM and support the Xbox One, or make a stand and support the PS4 and Wii U instead. I posted this in another thread, but in this article, EA CFO Blake Jorgensen states,
"...it’ll remain to be seen as to the services associated with those as to how consumers decide which direction they might want to go,” Jorgensen said about the PS4 and Xbox One.
I'm guessing EA is putting one foot in (e.g., with EA/Microsoft partnership for their sports lineup), while keeping the other foot out (e.g., upcoming games like Dragon Age: Inquisition currently do not have any announced exclusivity), and waiting to see what consumers will accept. Ultimately, I feel that it is important for those who care about these issues to make a stand and not support the consoles or titles that implement these practices.