Saw this article today as well. Sounds to me like GRRM thinks it will go seasons 5-7 for AFFC and ADWD, then 8/9 for Book 6, and then 9/10 for book 7. That makes more sense to me than the producers saying they hope to do it in 7 seasons.
New GRRM Interview:
http://www.vanityfair.com/vf-hollywo...rtin-interview