I tend to lurk more than not (due to being a CM), but this was a piece of news that came my way that I wanted to share. You're welcome to believe it or not.
We (the CMs in the part of MK where I work) had a meeting with two of our leaders who were talking about various internal things (high guest satisfaction ratings, great job, here's where we can improve, etc etc). Our leaders also mentioned that, while there won't be a huge celebration for the 45th anniversary coming up next year, Disney is already planning for the 50th anniversary. They said that the current plans are to completely overhaul both Frontierland and Tomorrowland both in the facades and adding new attractions. They said to expect some big, big changes in those two lands, although they admitted they didn't have any specifics as to what "New" Frontierland and "New" Tomorrowland would look like, nor what attractions would be added.
I suppose they could of been lying, but I've never known our leaders to deliberately do that - they've always been on the up-and-up, even to the point of saying, "Yes I know something, but I'm not allowed to say anything yet about it." So, like I said, take that news for what it is. We all know Disney, they could completely change their mind six months later and cheap-out on the whole thing. Just wanted to let you guys know.