He was put out of business and lost tens of millions of dollars from the raid. His punishment has already been served, without trial, and without due process.
Except this whole thing was orchestrated to prove to legislators that the current law cannot be used to stop the bad guys and that America needs those tougher laws that the lobbyists cannot get though.
"Ok, they won't give us the powers we need to make it impossible to send movies to your friends... How about we try and do everything possible we can to take down someone we can paint as the bad guy (fat douche looking hacker with an attitude, nice!) and when it backfires we can say it isn't cause we are not trying hard enough. It is because we need bigger legal guns."
Kim will get his stuff back. He will put Megaupload back online, even without everyone's data, because Kim will want to make a point, and the point will be exactly the point the RIAA and MPAA want him to make. "Look we even had the bad guys raided by a swat team... And they went right back to selling bandwidth to pirates."