I've heard of the Quezecotal theory, but I don't really believe much in Gods, unless it's directly referencing the sun, which sure, makes sense. The big problem is that there have been so many attachments to what the Mayans supposedly did and didn't predict, it's difficult to get the correct information anymore.
From all the information, I can definitely surmise that it's either a global catastrophe or a new age of enlightenment ahead. I'm personally hoping for the latter, but we'll see!
By the way, I will feel like the biggest douche in the world if everything goes off without a hitch.