When I was originally shopping a few weeks ago, there were studios, 1BR and 2BR available, and all views for many of those room types. Now there is almost nothing left for the 40% code when we are traveling in January. There are still plenty of rooms left at full rack rate, but almost nothing with the discount.
I opted to book what I could and hoped to change over to what I wanted later - at least I was able to get my airfare purchased knowing I had someplace to stay. As it turned out, I was able to swap out my 2BR standard view for a 2BR MK view within a couple days of making the original ressie (I booked the MK view THEN cancelled the other, FWIW! Talk about stalking the web site!
). When I went back to check availability right after the switch, the only thing available for my party size went from the 2BR MK view I had just booked to the 2BR standard view I had just cancelled, so it might have been the only room of that type left that was available with the 40% off code!
So if it were me and if I really wanted to go, I'd book whatever I could get and hope something better opens up. If you won't go unless you can get the exact room you want, roll the dice and see what happens!
But know that there were many rooms of all types originally available - if just seems like they went really, really quick (and FWIW, I have yet to see another 2BR open up for our dates...I'm trying to add one more night at the beginning and can't do it - there is nothing for any of our dates now!).