IronArcturus: Since GOG has other WH40K games, is there any chance GOG will get this one in the future?
There is ALWAYS a chance. After Diablo + Hellfire and Blade Runner releases everything is possible, literally.
MartiusR: Sadly, at this point we can assume that it's unlikely, due to Sega's negative attitude towards DRM-free (Sega is currently "owner" DoW franchise) and lack of interest in publishing literally anything on GOG.
We can only have hope that something behind the scenes is happening. But I wouldn't raise hopes too high.
Yes, SEGA is the owner of Dawn of War series, and yet Games Workshop is the whole owner of Warhammer franchise. We don't really know what is happening here. My best guess is that GOG client base is still very small compared to Steam (sales figures), so for that reason only they might not be interested to make any amendments in their agreements. Something tells me that we still have to wait for 5-6 more years or so.
ussnorway: they are anti-pc as a rule
They have their games available on Steam, so not entirely true.
There are 2 games published by SEGA here on GOG:
https://www.gog.com/games?devpub=sega&page=1&sort=popularity