So, as far as sales offices closing and making room for some more points to be sold:
Hilton Head: I was there for a sales presentation and it was in a building away from the villas. Not sure what it is used for now???
Vero Beach: Never been there, no idea for this one.
OKW: I thought I had read that they had torn down something, Commodore House (?) and built a few more buildings, maybe the ones with elevators, so more points were sold there later on too.
BWV: Yes, this is where the question started. The sales offices were in space that is now or will become more villas and points.
BCV: N/A, sales office was at BWV.
VWL: N/A, same as BCV
SSR: Sales office is not going to be in one of the 12 villa buildings, it must be in one of the previous DI buildings, so I wonder what it will be used for once SSR is sold out and the sales offices move on again or maybe they would kept it there like they did at BWV while they built add-on DVC units to CR or Poly or whenever else.