Hmm... I gotta say, I'm not against the series being dragged out at all. At least not when it's dragged out like this. Right now, it's going slowly due to big pictures and little text, so when the series is completed, it won't feel as dragged out for the people who reads it then. And in the end, making a good ending is a lot more important than rushing things and screwing up a life's worth of work...
I am, however, very dubious about this last arc. It's not progressing as I might have wanted. We'll just have to wait and see I suppose.
But, my point is, don't be mad at the slow pace. He's trying to make it epic. We'll have to judge the arc as a whole when it's completed.