The Living Seas will be closed until late November, probably right before Thanksgiving weekend. The Main Street train station in the Magic Kingdom will be under renovation until December 20 but it will remain open the whole time.
According to their website (I haven't seen or heard anything about it yet on any news sources), the Flying Tigers Warbird Museum will be moving to Georgia soon. They've already sold their hangar and are simply fixing up their last planes before flying them up there. That's two attractions...