I mean it depends what it is supposed to be. If it's some new hybrid, I'm ok with some wild alterations. When it's normal, human-based Xeno, I like more subtle changes but I like when they are made. Classic Big Chap is great, but that design had its limitations, since in the end it was just guy in a rubber suit. I'm not a big fan of straight humanoid legs. They doesn't fit very well for a creature that is supposed to be agile and can climbing walls and crawling through narrow spaces. That's why I think that perfect Alien design is Stmopy from Isolation. Designers took what is best about original, and improved upon it, changing to a more animalistic legs, and making it so much bigger. I mean, Badejo was tall and looked badass in costume, but stompy is intimidating as f**k with its height. I also like Aliens from Ressurection, but that's probably because how great they look in motion in terms of special effects. But although I prefer biomechanical look, I don't mind more fleshy look, because it fits the plot and was made purpously. So I hope that in Romulus they will stick to classic look, but also make some small changes, to make it interesting and distinct.