If current trends continue, the first two weeks of Dec will be prime booking periods and Poly will be 25% oversold on studio bookings (25% of bungalow points with most contracts in the 100-150 point range).
What are the chances of a monorail resort that is 25% oversold for studios booking out at 11 months in Dec? I think very good.
I believe a fixed week is a brilliant hedge on the future. If VGF owners knew then what they know now (that studios might not be avail at 11 months during peak
DVC times) the resort would have maxed out fixed week studio owners in Dec. Of course, just like with VGF, we won't know with Poly until it sells out, and then it'll be too late to buy fixed weeks.
But here's the real win-win. Let's suppose in 5 years that DVC moves to balance out its booking patterns and makes moves to reduce demand in Dec. How would they do that? By reallocating Dec to a higher point cost. Given that they now must overcome ingrained behavior, it would probably be a major reallocation, like the weekend/weekday reallocation.
In that case, fixed week owners would be protected against the increase. The fixed week is redeemable for a set number of points, or the week, no matter what the week would otherwise cost in the future.