(i didn't post to the thread because i didn't read it until your comment; i am absolutely uninterested in hogan, et al.)
hard to say what will happen, but if he's like so many other children of rich people, the legal team his parents will hire will likely result in him receiving a lighter sentence than some other schlep who crashed his car, seriously injuring others but can't afford the best legal representation money can buy. in case you're wondering, ko, i think this is pathetic, but sadly, it's the way the legal systems the world over work: $'s = improved defense team and eventual treatment by the legal system.
having said that, it may well be difficult for the prosecutor to prove that this driver decided to intentionally injure / kill others. this would be different than vick, who has plead guilty to participating and approving the decision to kill dogs who did not win.