Well whatever the case, the current rights owners flubbed Cyborg 009 and its unlikely we'll ever see any more of it.
I really loved that show too. If I ever have enough money I might just buy the Japanese discs and fansub them. The subs on that eight-episode DVD leave something to be desired (the way they don't translate the opening or ending themes or that text that displays just before the Avex Mode logo, for starters).