For the week ending 1/13/08 we saw Blu-ray dominate the high-def market thanks in part to Warner's announcement. Home Media Magazine has now posted the sales for the week ending 1/20/08. While HD DVD sales were up 2%, Blu-ray dominated again with 83% of total sales.
Some people have pointed out that there were no "buy one, get one" promotions this week, so this may be a good indicator of the way things are going to be.