Oh and from what I am hearing, Interscope is pushing Dr. Dre to bring Detox out in June. Whether that happens or not, who knows. But Interscope feels the album would be perfect for a summer release. They feel Detox fits with summer time like a glove. June gives Interscope time to release multiple singles for Detox between May and August to keep the momentum going strong for the album. It also gives The Game’s R.E.D. album and Eminem’s Relapse 2 some time to build hype toward Detox’s release.
So yeah, based on what I know, Eminem’s Relapse 2 is slated for a March release. Dr. Dre’s Detox is slated for a June release.
Source - http://musicouch.com/genres/hip-hop/eminems-relapse-two-coming-in-march/