Amazon.com are listing a domestic US release of Rock Dust Light Star set for release on 24 April 2012 (er, only 17 months after its original release!)
The label of release is listed as Executive Music Group (I have no idea if/how they are related to Universal Music so feel free to answer in the comments!).
In addition to a physical CD and digital release of the album the Executive Music Group says (in a banner graphic on their site) that a limited edition vinyl release of the album (with different artwork) will come out on 17 April as part of Record Store Day.