I'm all in favour of different-looking xenos spawned from non-human hosts. Honestly I feel like it's one of the most unique yet underutilised features of theirs in terms of the movies. There's so much cool stuff that could be done, and has been done in the various facets of the EU, but it's largely been ignored in the films since Alien 3 introduced the concept. Literally the only thing since then has been the Predalien, which was cool to see on the big screen after so many game/comic etc. appearances beforehand (even if certain aspects of its design were controversial).
And while part of me agrees that if another movie was to play with the concept that it should be done reservedly, like the Dog Alien was, part of me frankly just wants to just say "**** it" and see them go full Kenner. Snake Aliens, Bull Aliens, Mantis Aliens. Giant Flying Queens. Go nuts!