Looking at the 2010 KMF thread I made, I think this year's KMF was announced late Jan early Feb so we'll probably assume the same for next year.
For pool circle seats, you will want the back section along the extended stage. Oh and
possibly the front section and the seats next to the main stage, of course. From what I remembered hearing from someone who attended multiple KMFs, they are getting pretty strict now about people leaving their seats during the concert to crowd towards the edges of the stage...unlike SM Town's floor sections where we were scattered all over the place and seat placement didn't really matter when all you had to do was rush and camp a section closest to the stage.
After trying to recollect the memories of KMF '10 and watching fancams and videos, for maximum hand-holdage time, those sections outlined in green would be optimum. Like I said before, pretty much everyone had to stay in their seats for the duration of the concert so the areas in green are already by the stage. The sections in yellow are for after the concert when everyone comes out and celebrates which I think is the only time we were allowed to move around.
I could be wrong but this is based on what I've experienced and also from the fancams I've watched.