Stop being jealous of Hellsing, not every anime can get a miraculous second chance. Plus, there's no real reason to believe the Hellsing OVA will ever finish, and the waits between episodes are fucking 6 months+
Hellsing got a second chance because it did very, very well in America. They made so much money they decided it was worth milking. So far I think their hopes haven't paid off. It's an epic OVA but it's not paying off like they hoped. A bad investment.
Also, Hellsing only has 10 volumes of material in 10 years (and it's over basically.) In 20 years Berserk has 33 volumes and is only a third done. You would need an anime the scale of Doreamon or some shit to cover fucking half of it.
tl;dr BERSERK 2 LONG SO NO OVA