The Megazone 23 OVA series featured direction by Noboru Ishiguro, Ichiro Itano, Kenichi Yatagai, and Shinji Aramaki, and the first part was originally released back in 1985.
Scroll aaaall the way down and you’ll see a note about AnimEigo’s future plans, lining up classic OVA Megazone 23 as the next project.
Sequels followed in 1986 and 1989, but it’s currently unclear how much of the series AnimEigo plans to cover as part of its upcoming project.