... it looks like if there isn't a death warrant out for him, there soon will be.
Doubtful... they are, I think, somewhat hoist upon their own petard: having kicked Harry out of the WC, they've
given up their claim on him; now "Winter Knight" is his primary supernatural status.
At this point, trying to issue a death warrant on the WK could easily be construed as a declaration of war against WInter. I am quite certain that
none of the Senior Council (with the possible exception of Cristos) would be willing to risk a war against Winter (and the entirety of the WC (not just the Senior, but the general membership)) remembers the terrors of the Rampire War (and recognizes that a war against Winter would be far, far worse).