I think the postponement was by the defense, to try and put the public anger at bay. People are pissed the fuck off about this case. I think they make a bit of an example of him at sentencing, give him 8 to 15 years range. He probably does 4.
As to his return, who knows. It won't be for big bucks, regardless. Anything he does make will get heavily taxed by the victims families in civil court. So personally, I hope he does some time, I hope he learns, and I hope he makes enough money to pay that girls family, and they have something good to do with it.
He fucked up bad, and I also wouldn't give a shit if they gave 40 years. He killed a girl and her poor dog, burned alive by eye witness accounts, all because he was throwing a drunken fit. I have never driven 158mph in a drunken rage, but if I did, I would have no choice but to take the consequences.