Not to worry. Seeing as 2012 is the 100th Anniversary of the sinking(& Paramount) it's pretty safe bet this will be out on blu.
Now my question is this: Would Paramount release the blu to coinside witht he 3D theatrical release, or wait until after?
I guess it would be after, as they can market it as 3DBD, BD, dvd, dc, uv, etc etc. I just can't help but think releasing both at the same time would be a great cross promotion for one another...and 3D TV too!