This was on all the blue ray list of release dates and now it's gone.
what happened?

I switched from HD-DVD to Blue Ray and this film was one of the titles that was a BR exclusive.

It's been postponed: http://www.highdefdigest.com/news/show/Sony/Disc_Announcements/Sony_Brings_Identity,_Warriors_to_Blu-ray_Bumps_Marie_Antoinette/458