The only surprise would be if he DIDN'T perform. This was a given the moment he was released in time for this show. I don't expect them to announce it though. They'll leave it as a "surprise." He better not be opening up the show.
QUOTE from BET CEO People deserve a second chance. After he had done his service and his time, we, as a team, decided it’s OK to have Chris back, and let’s see how the audience feels ... I try to make the best decisions for my audience, and everybody may not agree, but I look at things from all sides. It gets back to fairness and justice. I felt that first year, it would have been the wrong signal to young girls if we allowed him back so quickly. A year later, it felt like he had paid his dues. It’s a case-by-case thing; you can’t make across-the-board rules about it. It’s one thing to give someone a platform, it’s another to give an award for being a great person. We want people to change and do better, and hopefully Chris Brown is at that point now.