^^I seriously doubt TPTB even know what's going to go down in the finale (I'm sure they toss around lots of ideas). Even if they did know what the finale will be, things change. You said it yourself. Something was supposed to happen in CoTP and it got scrapped. Scenes change from the time the spoilers come out until the episodes actually air too. Nothing is concrete until it's been filmed. I'll believe all of this when I actually see the episodes.