My opinion lies somewhere between "jbrowna" and "msabol01." I think, in general, that while it will not necessarily be a cinch to get into BLT at 7 months (especially during certain times of year), it will not be impossible.
Now, having said that, I do think you will have a problem getting a reservation for January 2010. The resort will have only been open 4 months at that point and the new owners will keep it very full in the beginning. And as "jbrowna" mentioned, there are also questions about how much will be "open" for points use. By January 2012 or 2013 it will probably be easier since some of the newness will have rubbed off, but in the first year or two I think getting a reservation during most of the year without ownership will be close to impossible.
I definitely think making a back up reservation at your home resort is a good plan, and you should be ready to call at the 7 month mark to have any chance, but I would also come up with a Plan B if you do not want to stay at "home."
Blahnde