There has been a change of animation studios responsible for Hellsing ova 8.
So we are looking at a 2011 Release.
At animefreak.tv, its under the name Hellsing Ultimate
Spring 2011
It will come out in the Spring of 2011,but it's chapters will be included in the OVA series.
Go to animefreak.tv and search Hellsing Ultimate
Hellsing is a fictional character which is from the anime series Kouta Hirano. This series is being played on the TV and on OVA. He is voiced by Nakata.
Go to animefreak.tv and search Hellsing Ultimate.
This year or mid 2012.
The 6th OVA is scheduled for release on DVD and Blu-ray in Japan on July 24, 2009.[1]
Spring 2011
in about 6 to 10 months from July
There is always a new date up on the official site whenever there's a new OVA released, so check it out: http://www.geneon-ent.co.jp/rondorobe/anime/hellsing/
the raw version is out on anime44 just wait a month or so for the sub version it can take longer