"But some of the elements as we know, whatever the host is, informs what the final creature is," said Hawley, "I just wanted to play around a little bit to make it as scary as it should be."
When i read this interview i started thinking what a xenomorph could b hatched from to make it any different to what we've seen before, any 2 or 4 legged mammal would produce basically the same thing & insects r too small, so that left fish which would b silly & what i landed on which was birds.
I figured what if the ship crashes & there r vultures feeding on corpses at the crash site & one is impregnated by a facehugger then we get a flying xenomorph.
Now seeing the teaser which apparently shows a facehugger tussling with a winged alien insect of some kind i figure that's where the flying xeno comes from instead.