I'm guessing we may now see DVDSP5 with full Blu-Ray authoring capabilities now that HD-DVD is out of the way - here's hoping as it's been quite some time!!!
There's been a bit of talk on this subject in the DVD industry and very little real information. Apple dropped out of this years NAB show, so there goes one possible venue to release it. Apple had a solution for HD on disc with HD DVD playable content recorded on regular DVD-R. There are "affordable" one off Blu-Ray capabilities on PC today although you can't master with them or get the level of quality that's needed for commercial releases.
From an authoring standpoint, to do quality work for Blu-Ray and master is also very expensive. Good software and compression setups are in the six figure range compared to mid to low five figure for DVD when it first came out.
The other big problem with BluRay for a lot of the professionals right now is in replication (manufacturing 1,000 pieces instead of duplicating a few). The client needs to pay about $5,000 in MANDATORY DRM license fees* before you can even press a single disc. That's not a problem if you're making 100,000 copies or more and you spread that cost out, but it's $5 a disc if you're making 1,000 BluRay discs of an indie movie in a niche market. This is the show stopper for almost all of my clients right now. Everyone wants HD on a disc, but they can't afford the fees that come with it, so they sit and wait, and release on DVD and then eventually sell it on iTunes.
Everyone says that the Blu-Ray prices will come down, but there are some factors that just don't allow it. The components for a BluRay player are more expensive than a DVD player by about 3x. And that's not a factor of scale, but complexity. The replication lines are more complex and more expensive than DVD was at the beginning, so even with more of them coming online, the cost won't approach that of DVD...ever.
It currently costs four to six times as much to manufacture a BluRay disc than it does for a DVD and that is not including licensing. Even if the prices drop with an increase in volume that DVD had (ain't gonna happen) BluRay will still cost twice as much to manufacture.
Oh yeah, HD DVD costs? Just a tiny bit more than DVD since they were able to be manufactured on retrofitted DVD lines and DRM was optional so you could avoid all those fees.
*$3,000 of that is to register with AACS LA, which is a one time fee, but for a company that only makes a single movie per year, it may as well be per movie. All replicated BluRay discs must have AACS DRM on them or they can't be played in a BluRay player.