This is my expectation too.
If this is the case [Vistana-Owners need to pay to play] many on this thread will be very disappointed.
IMHO...I believe this is good for Vistana inventory in VSN and bad for MVC owners who want to reserve VSN.
1) Enrolled mandatory Vistana weeks owners don't elect DC until Oct prior to the use year. 12 month Vistana Owner reservations for whale and summer weeks occur prior to the DC deposit deadline. Why deposit in DP when you can change 60 days prior to your reservation in the use year and use/bank SOs if your plans change?
2) If a VSN owner must pay $13,000 - $20,000 plus $1800 every year in MF for just 1000 - 1500 DC there is little value in the DC points if you primarily use your unit. DC points would be orphans. Owners can trade VSN for free and without the MF overhead. For other than a few MVC trades that is too much money for once in a blue moon flexibility. Much more lucrative to rent out the unit. We also own HGVC which we can use for short stay flexibility and to extend stays in many of the same locations. YMMV. I recognize that our situation is different.
After a decade of this type of DP buy-in MVC only has 60% of their units enrolled per an MVC disclosure in 2020. Many of the best Lahaina MOC units are not enrolled because owners use or rent. I see a similar scenario for VSN.
There are situations where DC would make sense i.e. if you own SVN voluntary traders, or also own in MVC and want to integrate your ownerships and want flexibility.