Easter egg. Same as the skull in Pred 2.
But, after some reading and digging through some gross fanboy wanking, seems like Xenomorphs exist in the Predator timeline, at the very least. That doesn’t say that the events of AvP are canon to the Predator universe, it just means Xenos exist. AvP does not exist in the Alien universe, however.
Also, all this canon talk is boring because there’s no right or wrong answer. I just like Space Tarzan go slashy-slash, that’s all.




