I think there might be some stuff out there to do with facial animations or idles, don't have links on me. But for the animations themselves, I doubt it. Seems like a clear choice of style and I don't think you'd be able to do much, without redoing most of the animations from scratch. Maybe redoing some of the rigging too, idk much about 3d modeling.
Edit: I will say what I have noticed is from the little attempts at animation I've done on the models, it seems like it's very hard to do precise movements that are more subtle and realistic, as opposed to sweeping gestures. Might just be because I suck at 3d modeling or maybe it's the nature of the rig as well.
