I wish, either Fede's movie or Noah Hawley's TV series would finally say it out loud that the Xenomorph (the perfect organism) is capable of adapting to any type of envirenment and situation.
The hive/queen caste, the process of taking the traits of its host, pathogen, the eggmorphing and hell, perhaps something new are all potential evolutionary chains of the Xenomorph depending on its current envirement.
But you are right, the eggmorphing theory is too "fan-servicey", so i won't get my hopes too high.
Still, my greatest wish for the franchise is to have a scene similar to Berserk's Eclipse but with Xenomorphjs instead of the demonic apostles.
I miss the psycho-sexual Gigeresque nature and horror of the Xenomorph, since that is its most unique aspect that was lost in the sequels.