Does anyone have an estimate when the AX rates will be available for JW?
At this point, it is difficult to say because, it can vary from year to year.
Sometimes it can be as early as December, and sometimes it can be as late as a few months before the con. (Like last year in 2012.)
The best bet is to keep checking on the official AX website.
Traditionally, the Westin Bonaventure would always open up first, and then the rest of the hotels would follow suit.