Repercussions
a) Should be stripped of his Oscar. Imagine you slapped/punched someone in your workplace/office for telling a bad joke involving your wife. Not only would you likely be fired, you absolutely would not receive an Employee of the Year award a few minutes later. What Will Smith did was criminal, whether or not Chris Rock wants to "press charges." There is ample video evidence for the LAPD to arrest him for assault and battery.
b) Will Smith should be Blacklisted. If Joss Whedon is Blacklisted for being "mean" to actors, Smith should absolutely be Blacklisted for striking an unsuspecting comedian. He could have heckled Rock, called Rock an asshole, told Rock to put up his Dukes, challenged Rock to a duel. Instead, Smith sucker slapped a much smaller man. What a piece of shit.
c) Celebrities choose to put themselves in the spotlight but attending awards shows, talking to the press, going on talk shows. They are fair game for comedians to make stupid, unfunny jokes about. What you do not do if you are the butt of a joke is assault a multi-millionaire. I hope Rock at least sues Smith. Totally and completely unjustified in 2022.
d) I actually do not give a fuck about this.