According to CEO Jean-Manual Croset and Director of Community Charles Schulz, the Mandriva server products will be based on the Mageia distribution of Linux, while desktop and OEM products will be based on the historical Mandriva Linux distro.
This move will make Mandriva the first serious commercial Linux vendor to attempt to base their offerings on two distinct codebases. Parallels can be made to Fedora and Red Hat Enterprise Linux or openSUSE and SUSE Linux Enterprise Server, or course, but ultimately those products are based on the same codebases, respectively. What Mandriva is proposing is more complicated.