I'd like to see more variety in alien species. With a few exceptions, a majority of them are either animals from earth on a human base, or just fantasy analogues. Now, dont get me wrong, I do enjoy a majority of the content TiTS has to offer, but I'd prefer more actual xenophilic content. I wouldnt even mind a mostly human shaped base, with some weird aspects, like odd joints, irregular appendages, unorthodox arousal/mating behaviors and orifices, faces that dont look like human/animal heads, basically whatever, I'd like to see more creative designs in general. Now I will admit TiTS does already have some of these elements to some extent(deeps queen, cunt snakes,a couple of races like toves and roehm, etc), theres still a strong lack of truly alien content.
TL;DR, xenos are hot and game needs more.
TL;DR, xenos are hot and game needs more.