Gracie schools are thriving and their bullying program for kids is popular.
MMA and/or BJJ is in a different category. That is the booming martial arts at the moment. Kind of reminds me of where taekwondo used to be in the 70s. By the way, bullying programs in taekwondo are also doing well. I don't know how much approval those programs would receive from a diehard self defense is everything type though. In fact, I think I remember reading a thread or two about that, how ATA's bullying program was weak, for example. But taekwondo and bjj are in the lead at the moment for martial arts,while everything else suffers. The two styles don't really encroach on each other's territories, because I think people that are attracted to one aren't necessarily attracted to the other. Probably the most hurt from the BJJ craze, a craze that has been going on for 20 years, I would think would be self defense oriented schools.