Correct, VGF can not because VGF is not located at the Poly resort. This new tower IS being built at the Poly resort. That information was included in the announcement so there is no question is it part of that complex.
Obviously, you are correct they could change things and not make this part of Poly. IMO, I see no reason for that to change if that is how it has been announced....if they wanted it to be something not even associated with Poly, or wanted that option... the title would not have said "New DVC Villas coming to the Poly Village Resort" but rather something like "New DVC Villas coming to the Seven Seas Lagoon"....
RIV was never advertised as part of CBR.
The only thing in question right now...because the announcement did not include it.... is whether DVC will classify it as a new association so they can apply new rules, or if it is absorbed into the current PVB association.
We shall see how it plays out as we have 2 years before sales begin.
That is all correct. And it is, by far, the most likely outcome. But things do change, especially as designs get finalized, new problems crop up, new realizations.
Whole projects can get cancelled even after work has started -- ie, Reflections.
Other projects could see wholesale changes.
I wonder, in the initial planning that led to this announcement, whether there was any consultation and consideration regarding the current capacity of the Poly pool and amenities. I can certainly see the type of situation of left hand doesn't know what the right hand is doing. (like when they offered free dining to people with Covid re-booking... without any thought that dining was going to be impacted for a long time even after re-opening).
As planning continues, a realization that an additional 200-300 units would overwhelm the Poly infrastructure, could lead to a significant change in the plan. (such as turning it into a separate resort, as opposed to a Poly addition).
Again, it's unlikely -- It would be inconsistent with the announcement. But I wouldn't say it is impossible.