I think I am following what you are saying.
While I don't know the mechanics behind the games animations i suspect the issue will grow as you said. This may be bold of me to say but you could take a moment to potentially look into changing the mechanics of animation in general.
Maybe look into using a paper doll system with separate reuseable animatable parts.
A system like that would be more work to set up, but the result could not only deflate the game but also make adding more to it easier.