What sort of assumed agreement are you talking about?
I'm not wholly sure, in all honesty. I'd have thought if Sony had made the deal to bring Minecraft to Playstation - and especially with the insider rumours that Notch was up for selling (which I'd assume if it were the case then it would probably be well-known within those circles) that they'd have something written into the contract which would make sure that if Mojang or the rights to Minecraft were sold that they wouldn't be cut out of the loop in anyway after their initial investment.
I'm only spitballing here, I have no idea how it works in business practices.
Of course, a Minecraft II would probably be a different kettle of fish.
Like I say, I'm just curious as to how this would all come about seeing as how it was only announced for PS relatively recently. I know that if I was in a different line of work, had just bought the rights to use something and then the company I bought it off was sold and I lost those rights, it would irk me, so I'd assume there was some clause in the agreement to prevent that sort of thing happening, at least for a while.
Going back to my original post though, I don't know how these things work at all, but I'm genuinely curious to see how it pans out.
$2 Billion is an awful lot of money just for name and merchandise rights though, I'd have thought, even for Minecraft.
EDIT:
Just to clarify, this is assuming that Microsoft are going to take the game and run with it, which I realise is just supposition. But again my last line kind of leads into that - $2 billion is an awful lot of money for just the name and merchandise rights.
If you get me.
