I was slightly wrong, looking back. The marking remains the same in the published versions, it changes in Omega, though. This is the image that Olivetti posted, back in September, actually, on Facebook. Below is a picture of Scar from AvP. The blooding marks are identical.
Here's how the blooding mark looks in Omega. It's a bit hard to see, but the mark has been changed by the addition of another line above the T shape.
Spoiler
That all being said, I don't think it means anything, one way or another, like Hicks said.
Back on topic, I enjoyed Omega quite a bit, and will have a full review probably tonight.