Dawn of War 3 is a thing that should happen, so we're glad to see it might be happening.
A Dawn of War 3 domain has been registered by Sega, Relic Entertainment's parent company.
It may be a defensive registration, but Relic Entertainment has been pretty quiet since Company of Heroes 2, so a Dawn of War 3 announce seems quite reasonable.
Warhammer 40K: Dawn of War 2 came out in 2009 and the last major expansion, Retribution, released in early 2011. It certainly feels time for another go at it, doesn't it?
You can go admire the WhoIs record for the new domain if you fancy. The URL is parked with a generic search page at the moment.
As a reminder, fellow Sega studio The Creative Assembly is currently working on Total War: Warhammer.