While the criminal case concerning the “Battle Royale” may be over, the civil case is going into high gear. Businessman Adam Hock this week pleaded guilty to disorderly conduct for the brawl at club Double Seven that left Monaco’s Pierre Casiraghi with a busted jaw. Now Hock is being sued by some of the partygoers he socked, and a trial is set for April. And top supermodel Natasha Poly, a witness to the fight, has been issued with a subpoena and will testify in front of lawyers for all sides Feb. 21.