Looks like tickets are close to going on sale. I can't buy any at my local IMAX yet, but it is showing up for one in Arizona, so I'm guessing it is just a matter of time before the bulk of mainstream theaters catch up.
I know articles are suggesting Nov. 28th, but aside from that being a terrible and stupid date (Cyber Monday), it is way too close to release date.
I could be wrong and the IMAX thing is just a screwup, but might be worth keeping an eye on if you're looking to get tickets.