okay i do not think these were listed in the main post, but i apologize if they have already been mentioned:
creatu: adding another 'natural color' of like a dark brown or umber in addition to the sepia. i love all the colors but sometimes its fun to try to hatch a creatu similar to your own pet!
items: this is probably a well known thing, but i would love if some items actually had functions! for example, the planet scrolls! and items in the potion shop in general. perhaps there are plans in the works already, and i do recognize that giving items functions probably takes a lot of work.
<3