To be released on Blu-ray 5/15/12!
Ken Burn's The War will be released on BD May 15th. I was wondering about this no more than 3 months ago.
Extras look the same as DVD version.
The only real concern is whether this is getting lossless audio. The Blu-ray.com announcement just says, " English 5.1 surround." Lossless is essential for this Blu-ray.