Come back after you read this.Here's my thoughts:
What a sell out. He makes the game, throws it off to another team, and then sits back and cashes in. Then he sells the whole company as-if he wasn't already making enough (Someone correct me if I'm wrong here). They were working on a mod API, and adjusting core game code for it. That's a large part of the reason why modding took so long in 1.7, if i'm not mistaken.
I don't see Microsoft keeping the team working on a mod API. Didn't they hire someone strictly for this too? They'll focus on consoles and mobile devices of the game, but vanilla is boring and will never be fun again. Honestly I think this is an absolute worse case scenario. INB4 Microsoft sends forge a cease and desist, effectively killing modding.
http://notch.net/2014/09/im-leaving-mojang/