GRRM's teaser grrm.livejournal.com/361577.html

We'll, it's good to know he is still working on the next book. I'm still betting that HBO catches up to him before he publishes it, though.

to cover feats and dance will probably tke 3-4 season. We can hope winds will be done by then, and it might give another two years for dream

of course it wont be enough, so he has already said that they might fill a season or 2 with prequels

Arya and Bran might look like adults by then