On June 7th at 5PM UTC (6PM BST) Feral Interactive will be livestreaming the Dawn of War III port on Linux. This is the first time the public will see the game on Linux, so it's pretty exciting.
Direct link to the Twitch channel: https://www.twitch.tv/feralinteractive
Here's a handy countdown for you so you don't have to worry about time-zones:
I've also added it to the livestream schedule page (where you can all submit your own events!).
I'm excited to see it, are you?