That's not how it works. DVD declares a set number of rooms into the
DVC system based on how many points they anticipate selling over a select time period. Once those points are close to selling out, they declare more rooms into DVC inventory and the process gets repeated until all points for the resort have been sold.
The last declaration was 1/15/2021 and represented three tower studios, two dedicated studios, two dedicated one-bedroom villas, eight lockoff two-bedroom villas, eight dedicated two-bedroom villas and one grand villa for a total of 465,100 points. You will not see a change in inventory for RIV until another declaration is made, not as additional contracts are sold.