Let the hive mind of Engadget get that for you.
"What is the best wireless surround sound speaker solution? I have a home theater where running wires is just not feasible. I have my own speakers, so I don't want a system that has speakers with integrated wireless. I've done a far amount of research and have only come across a few companies that even offer a reasonable solution: KEF, Kenwood and Rocketfish. Is there anything else out there? What do you recommend? Thank you!"
I really don't think it will take 3 years like DVD... electronic product cycles/improvement cycles are much faster these days than they were 20 years ago. I'd say we'll hit that pricepoint sometime in 2008. Whether it's hit by one or both formats next year, who really knows... but my humble guess would be that yes, by sometime next year we'll be seeing both formats at $299.