I am guessing that sometime between now and June 22, Chris Brown and the district attorney's office will come to some kind of deal. The reason? Rihanna's attorney said that Rihanna has been subpoenaed to show up and testify at the preliminary hearing of Chris Brown scheduled for that day.
That means Rihanna will get on the stand and start spreading the news. It is one thing to hear rumors and to see the picture of Rihanna, but when she starts talking, things are going to go really bad for Chris Brown really, really quickly. It will be a news media frenzy and there is no way it will ever turn into a positive for Chris Brown. It won't even matter what happens at a trial or if there is a trial because people will remember what Rihanna says at that hearing.
All the hearing is supposed to do is to see if there is enough evidence to take the case to trial. It is a very low burden for the prosecutor and having Rihanna testify about what happens will see that it goes to trial. Chris Brown and company do not want that June 22nd date to go forward. At this point he would probably even plead to jail time because at least them her testimony will not ever occur and no one will ever know exactly what happened. We will have a great idea, but we won't ever know for sure.