The Word of Notch has word on this weekend's MineCon festivities, as well as a bit on Minecraft, including an apology for forgetting about mod support:

The last few weeks have been incredibly stressful and emotional in many ways, and I feel so relieved to finally have a finished version of Minecraft to release to the world on Friday. But that doesn’t mean we’ll stop working on Minecraft! We’ll keep adding to the game just as we have so far, and we have many exciting plans for the next year.. some of these will be announced fairly soon.

One thing that kind of fell between chairs is the mod support.. Sorry about that, I take full responsibility for letting that get forgotten about. But when it comes to the new launcher, it got folded into a new exciting project I won’t talk about yet.