I didn't read...

the article you posted yet. But I am sure it is talking about the two year gap that will happen before the last book is completed. The books are 1500 pages long and he is on about 1/3 of the way into the 5th book of a 6 book plan and each book takes 3 years to write. You would think they will go back in time and tell the story of the mad king, maybe bring Ned Stark back or something for a season, kind of like Spartacus did? Otherwise I am not sure how this will play out. I have been meaning to metion it here.