(I may stand corrected)
To my understanding of how the game has been built the sort of thing you're describing is not impossible but unfeasible.
Lets look at what we can already do before I explain why this is so unfeasible, as of now, there are a small group of spells that can let your character do things like there races attack motions as well as Eating,playing an instrument, crying, reading and a few other things, what I believe you are suggesting is something like human unarmed pose on a orc, this won't work as all models in the game have premade "emotes" that match to there skeleton and are locked in whats called a .anim file, every creature/race in the game has its own .anim file and the race/creature is question can only preform "emotes" that exist in that .anim for example this is why demon models can't jump or laugh in most cases.
The technical fix that makes this not impossible is that you could port and open up these .anim files and give a race/creature a new animation but they all have to be done by hand, and that is not only time intensive but I personally don't have the skill to do such a thing, so it can be done, but its not within a reasonable grasp for me Or aze(he can correct me on that one) to do.
So the TL;DR is that its not impossible but unfeasible because it requires some one making tons of new animations for every race combo by hand to fit that races skeleton.
(On second thought, there are some cases of spells that make a skeleton do a specific movement/pose, but when used on a race that it isn't intended for it can make them look like a pretzel.)
To my understanding of how the game has been built the sort of thing you're describing is not impossible but unfeasible.
Lets look at what we can already do before I explain why this is so unfeasible, as of now, there are a small group of spells that can let your character do things like there races attack motions as well as Eating,playing an instrument, crying, reading and a few other things, what I believe you are suggesting is something like human unarmed pose on a orc, this won't work as all models in the game have premade "emotes" that match to there skeleton and are locked in whats called a .anim file, every creature/race in the game has its own .anim file and the race/creature is question can only preform "emotes" that exist in that .anim for example this is why demon models can't jump or laugh in most cases.
The technical fix that makes this not impossible is that you could port and open up these .anim files and give a race/creature a new animation but they all have to be done by hand, and that is not only time intensive but I personally don't have the skill to do such a thing, so it can be done, but its not within a reasonable grasp for me Or aze(he can correct me on that one) to do.
So the TL;DR is that its not impossible but unfeasible because it requires some one making tons of new animations for every race combo by hand to fit that races skeleton.
(On second thought, there are some cases of spells that make a skeleton do a specific movement/pose, but when used on a race that it isn't intended for it can make them look like a pretzel.)