This set is already in somewhat murky territory with regard to copyrights. I await word from 20th Century Fox business relations, but I'm not expecting a response any time this decade. If this set gets made, it will have to do so under the auspices of benign neglect from Fox.
In any event, apart from the D|T, G|H, and r|m tribute keys, I'm not going to make any key that refers to the name of anything (like Weyland-Yutani). I'm also not planning to use any Semiotic symbol that (I feel) Ron Cobb would not have allowed to appear on film.
I hope everyone understands and appreciates the philosophy behind my decision there.