I have seen some lower prices, but overall my average has remained pretty steady. One other major change that I have noticed is that sedo's nameservers seem to be catching all of the sub-domain traffic they were loosing prior to December 1. My traffic literally doubled overnight, with some of my worst domains instantly becoming profitable. Hopefully the prices will continue to go up.
I also hope that the keywords can get a bit closer to the traffic I get. I don't look for typeins, I am trying to buy traffic domains, and often the keyword doesn't match what the previous site was about. I noticed that google now has a parking service of sorts that will try to match domain names with keywords. Might work well for typos, but not for the expired traffic domains.