There are some recent promising signs pointing toward healthy adoption of the Blu-ray format. Apparently, Blu-ray makes up 10-15% of total sales of the recent release of "No Country for Old Men." (Disney)
For "Appleseed Ex Machina" (Warner) BR accounts for 30% of total sales.
While these are only two examples, and too early to forecast a trend, these numbers are apparently larger than were previously typical.
(Disclaimer: I'm getting this from blu-ray.com, but I suspect the figures are accurate.)