Rainbow Six Siege Crossfire Support?

Is this going to happen or not?

I see that in 16.2 The Division has a Crossfire profile, a game that is not even going to be released for another 2 weeks.

R6 Siege has been out for 2+ months now. It supports SLI, so its not like multi-gpu is out of the question entirely (like Just Cause 3). Why is this taking so long to release?