Most (if not all) of the 5th and 6th floor rooms are being converted. The "new" AKL conceirge rooms will be standard sized on the 4th floor (but will have access to the lounge...which will be run by DVC and AKL will pay them a fee for their guests to use it).
They're SUPPOSED to stop at 5 PM...that's the "rule". If they were past that, I might have done some "talking" to the front desk.
AKV bookings, until the new building opens, might be pretty competitive at the 7 month window. As you can see by my siggie, we bought into AKV (our first DVC purchase!!), but from the posts on the DVC Misc board, it's looking like interest from DVC owners who DON'T own AKV is very high...and keep in mind until the new building starts opening the availability is close to that of the Villas at the Wilderness Lodge.
No neo-angle hot tubs, unfortunately. Good sized whirlpool tub, but not the same, meaning as big, as the ones in the other villas. However, in the new building (but not in the conversion rooms), you get an "extra" bathroom in the 1 BR (so you get 2 full baths) and 2 BR (so you get 3 full baths). In all but the "value" rooms, in both buildings, you can sleep 5 in the 1 BR and 9 in the 2 BR (as opposed to 4 and 8 at the other resorts). Lots of info and pics of the models over in the DVC Misc forum...

In addition, I frequent this thread so I can try to answer anything I know about....or direct you to someone over on the DVC Misc section who might know.