Dragonfish

It's all just speculation from the fans. We've never gotten any indication from GRRM that the series will have to be expanded further, AFAIK.

AFAIK, no. That's what I was trying to get across in my previous post. Sorry if I wasn't clear enough. :)

IIRC, Martin has said that the "Dance with Dragons" the title refers to is not necessarily Dany's invasion of Westeros.