I'm thinking this is an almost-certainty at this point. I doubt they can really do anything about existing builds of Minecraft on non-Microsoft properties, but a Minecraft 2 XB exclusive is the obvious way to get a healthy ROI on the Mojang acquisition.

I obviously don't know the whole picture here, but I see the purchase of Mojang as a strategic move to strengthen the Xbox One platform. They're banking on Minecraft being a strong property for the next few years; they could easily sell a few hundred thousand units holiday season 2015 if they have a exclusivity on Minecraft 2.

With Microsoft, I think Minecraft 2 is a given. You didn't expect Disney to NOT release another Star Wars trilogy after acquiring the franchise from Lucas, did you?