Update - A Song of Ice and Fire - George R. R. Martin's Official Website
We have a date! Again!
For the next book, which isn't the final book, which assumes that he'll live to be 300 before he actually finishes it. Unlike Sanderson, and Erikson, who, how do you say.. "care about their story".
Fuck GRRM. Just let the dudes that produced Rome finish it on HBO.