In the linked thread, the Starwood vice chairman and CFO of Starwood Hotels Worldwide said:
"This year, we moved our Westin Resort in St. John to SVO to be converted over time to vacation ownership inventory."
This was during a quarterly earnings call, so he wouldn't say that without truly meaning it, unless he wants to go to jail.
The conversion of all of WSJ to timeshares is beyond speculation, though we don't know the exact structure and timeframe. What I was told when I was there in April is that each section would have its own HOA. That detail, of course, could change. Also, as with anything else, it's not done until it's done, and before it happens plans can be altered, like the building of WKORV-NN that got derailed after the project started.