The breakdown of the BLT villas that I was given while visiting the models is:
Standard View (SV) - 11%
Bay Lake View (LV) - 69%
Magic Kingdom View (MK) - 20%
In looking at the conatruction-to-date it appears that the top 2 floors on the MK side are only GVs. I did not get a look at the "inside" of the "C", but the top floors on the outside of the structure also appear to have GVs based on the 2 story windows for the Living Room. There will be 14 GVs at BLT - with 6 having MK view and the other 8 with Lake View. If those numbers are correct, there won't be any GVs on the "inside" of the "C".
At the CR Tower, there are no guest rooms at or below the Concourse Level so all of the rooms on the MK side do have a MK view without obstruction - even the monorail does not obstruct the view since it travels behind those rooms inside the CR until it crosses the MK area at the level of the train tracks and bus stop. The Concourse level (4th floor of the CR) corresponds to the 5th floor of the BLT. All of the villas below the 5th floor at BLT will be obstructed (at least partially) by the monorail track.
I have not seen any detailed information about the view layouts, but based on the percentages I was given above and my own observations of the construction site, it appears that only the villas on the outside of the "C" facing the MK will have MK or SV - with the 6th floor and above as MK view and 5th floor and lower as SV villas (could even be 5th floor/above/below).
IMO, the lower floors on that side will still have a view of the fireworks, but minimal views of MK as far as the castle goes.
The remaining outside villas (top and bottom of the "C"), I think will be LV although a few may have an indirect (think - lean over the balcony and look way to the left/right) MK view. Of course, none of the inside "C" villas will have MK view.
I think may will be very pleasantly surprised with most of the LV villas. We often dine at CA Grille and really enjoy being seated in the Wine Room on the Bay Lake side of the restaurant. (Of course, the MK side is pretty special too!)
Stay tuned - we may not really know the exact view configuration for awhile, but it's fun to speculate !