@james kind of question and suggestion at the same time.
Have you considered adding world-exclusive creatures in the future?
Right now we have the same creatures over all planets, the only exclusive thing is their elemental variants, but what about fully exclusive creatures?
Toxic/corrosive worlds could have some sort of slimes, and plant based creatures.
For Burnt worlds maybe fire spirits?
Summary
From paper mario
Again from metroid prime
Well I guess you get the idea, so I would like to know if this is or can be considered for the future