For now Brown is on the exempt list of the NFL, meaning he cannot sign with another team until they complete their investigation. I'm not sure any team would want to take a chance on him. If he couldn't stick with the Raiders (who are famous for taking castoffs), or the Patriots (who seems to be able to rehabilitate anybody's career), I'm not sure any team wants the drama or the distractions. In short, I think his time in the NFL is done.
I'm not an AB fan, he reminds me of the worst of Chad Johnson and Randy Moss put together. Having said that, if he has a mental illness or other ailment, I hope he finds the help he needs to get his life back on track.
Barbershopman