As per his latest blog entry: http://grrm.livejournal.com/380622.html , he states:
I do have one more trip this year: a brief visit to NYC in late October to promote THE WORLD OF ICE AND FIRE and see editors, agents, and family. Elsewise, I am home for the rest of the year... and well into next year, I hope. Most of that time I plan to spend in Westeros.
Hmmm....editors and agents, I wonder what those talks could entail? Potential publication date in the months to come following those meetings? Plus, that last sentence...I saw a rumour (forget where on the net, but that's just it - a rumour) that George wants to have the manuscript for those who need it on the publishing side of things in January.
As more and more progress comes about, I shall let you know.