That's my same feeling. BTM is our favourite above all. I'm planning our next visit at the end of november and I don't know what to do!!
At the beginning I thought that this long closure would be right after the Indiana Jones one. Indiana Jones will open at the end of May, so maybe BTM will be closed right after summer? In this case going in november won't be a good idea.
The Frontierland cast member said that it would probably be closed in 2015, so going in november would be ok.
Well, I still have time to think about it. I have to wait for a good offer. The one with 2 days and 2 nights free isn't good for a 8 days 7 nights stay.
I hope to find some more info soon, but it's very hard. These things are kept secret very well!