No, don't even joke about it
It this format war goes the wrong way we could spend 10 years plus regretting it
It won't happen though. For one thing HD DVD has cut itself a decent following already and it will only increase as the Xbox 360 addon and second gen players arrive - the market is there to justify more releases. And I think we'll be pleased with the announcements at the September show as well (NAD joining HD DVD perhaps).
Ultimately once 2006 Q4 battle has been fought I should imagine we could see some movement in studio support: hopefully Disney and BV will jump into Dual format. Fox may take a little more but HD DVD has done very well so far and hopefully the sales figures will encourage them to join the team.