Awesome! I'm hoping he should have tWoW doneand published in the next couple years, barring any "meereen" knots, with the same sort of schedule for aDoS. Keep in mind the last two books have been built up since aGoT, not to mention that this series was originally trilogy, as mentioned by Werthead. Thus, it stands to reason that GRRM would have most of the concepts plotted out for the final installments.