I don't think anyone knows for sure. It is not immediately obvious to me that there will be "too many" studios at VGF1+2.
Ideally, the demand for room sizes would equal the fraction of room size allocations. So, for example, imagine that for a given resort's room configurations and
point charts, 50% of that resort's owners preferred studios, 30% preferred 2BRs, and 20% preferred 1BRs. If 50% of the rooms were studios, 30% were 2BRs, and 20% were 1BRs, then supply and demand would be perfectly aligned, and all rooms would book at the same rates. If some room type were more popular than its supply, it would book faster than the other room types.
So far, in every FL DVC resort ever built, the demand for studios is higher than the supply of studios, because the studios always book full before any other room type. That's true of VGF, which ignoring Grand Villas currently has a mix in practice of: 1/3 studios, 1/3 1BRs, and 1/3 2BRs. But, the demand for studios is highest, followed by 2BRs, and 1BRs are pulling up the rear. (The studios and 1BRs are all two sides of a lockoff, but the studios all book much earlier than the 2BRs, so I assume anything that can be booked as a studio is booked as a studio.)
The New VGF will have a much different mix. It will range from 68-72% studios, 0-14% 1BRs, and 32%-14% 2BRs, depending on how many of the lockoffs are booked as 2BRs (first # in range) vs. separately (2nd #).
So, the big question is: how many current and future GFV owners would prefer a studio in the given point charts? If it is much less than about 70%, then studios will go begging while the larger units are booked up solid.
Ignoring 3BR units and excepting the Poly (the remainder is 100% studios), AKV has the largest possible fraction of studios at about 43%. But, those book the fastest, so the organic demand for studios in AKV's point chart is higher than 43%. Stands to reason that GFV is probably comparable (and so also higher).
How much higher? Enough to get to 70%? Good questions.
I will say that I didn't get into timesharing to stay in glorified hotel rooms. And that seems to be true for most other timeshare owners on e.g. TUG. But DVC seems to be a different breed for some reason.