Couldn't they reclassify BLT to enter that "super resorts" group, even add Alunai as well, with the intention of eventually creating a Poly DVC? That would create that top tier.
Every time a new resort is under construction there's been speculation that Disney would create a separate system. Search the forum history and you'll find posts from people who were convinced it would happen with AKL, VGC and BLT.
So far nothing. And creating this "super deluxe" class would be the antithesis of any sort of Value DVC.
IMO, one of the keystones of the program has always been its simplicity. They aren't just selling points in Saratoga Springs...they're selling the ability to book Bay Lake, BoardWalk, Beach Club, etc. Adding a series of except/buts to the program can only harm overall sales, IMO.
The 11/7 month rules are pretty straightforward to explain. Try selling someone on the program if its meager selection of 11 resorts features 2 or 3 separate groupings based upon class. Convince a customer that they would have "no problem" booking a "super deluxe" resort just 3 months out (to pick a number) under a system with multiple tiers and home resort privileges.
As others pointed out, perhaps the most dubious aspect of this lie in the fact that Value resorts currently have the highest occupancy among Disney's 3 different resort classes. I don't see why Disney would be so quick to start selling off Animation Suites at discount DVC prices when they should command $250+ per night.
A more logical approach would seem to be continuing to chip-away at the Deluxe resorts as demand falters. If Disney's Deluxe resort occupancy rates continue to fall--as spending habits change and cash guests show increased preference for things like the Value suites--we could see blocks of hotel rooms at the Wilderness Lodge or Beach Club or others slowly converted to DVC villas.