2/14/13 update: As you can see in the comments, Walter (Necronomicon's guitarist) has a clarification - and he's right. These are not re-recordings but rather new recordings of material composed in the early 1970s. There is a difference! My copy should be here soon - I'm quite excited about it!
Here's the official blurb: "Since 2010 NECRONOMICON started playing again with mostly the original cast of band members (Harald Bernhardt, drums; Norbert Breuer, Git.; Gerd Libber, Bass; Walter Sturm, Git.). On the keyboards now Helmut Herzog is providing our as near as original Sound. In professional studio quality songs we composed between 1972 and 1974, which never had been documented in good quality, were recorded. The new vinyl LP HAIFISCHE (Sharks) plus CD as bonus will be published on December 22nd 2012. The cover reappraises the artwork and design of our 'Tips zum Selbstmord' LP."