We have only tried to get 2 bedrooms a few times. For a standard view in May/June, we walked it. The other 2 times, we were not looking right at 11 months, for dates in October, and all standard 2 bedrooms gone. Pool/garden view was still available. I would not count on standard studios (which also means standard 2 bedrooms,) being easily available, even at 11 months, at busy times.
We haven't done a grand villa since 2013, but we didn't have an issue getting it at 11 months. No idea now.
We LOVE Boardwalk, but never book studios, almost always 1 bedroom, and have no issues getting those, or pool/garden views. I wish SO, SO much the 2 bedrooms were not all lockoffs. we'd much rather stay in a 2 bedroom.