I don't think there will be charges and I do think Chris meant it as a joke, but she does have a medical condition. One that a few black women I know have endure and it can be devastating. So, I don't take what Jada's going through lightly.
I think when you crack a joke about someone's appearance you should do your due diligence to make sure it wasn't a medical condition attached to it.
A few comedians made fun of Chadwick on social media because he had lost too much weight. Stuff like he should go to "Burger King" or some crap and the man had cancer.
Will was wrong to use violence when he saw his wife was hurt, but Chris does owe Jada an apology. He humiliated the woman in front of her peers.