Following up on this...Bonnet works hard to not move you if they can avoid it. And, as far as I have heard, they are usually successful. Essentially, Bonnet has *never* operated as a week-by-week resort, even though the inventory in the computer reservation system is managed that way. It's pure UDI/points.
That said, VIP owners (gold and above) *are* supposed to be able to reserve specific units at the time of booking. In years past, VIPs have complained (loudly) that Bonnet has not observed the "do not move" flags that identify such bookings. VIP owners are important enough to the sales arm of the company that someone might have leaned on Bonnet's local management to get them to "shape up". Combine that with the fact that the 4BPs are relatively rare, and it is possible that they don't have the flexibility to keep you in the same room.
This is right on the money. The front desk should be able to give you more insight. When I called the resort's direct line to make my location request it was reasonably clear to me that the woman I spoke with had access to room assignments.
This isn't a huge burden---$95 per exchange. It's just about equal to the cost of theme park parking for seven days.