In a FT article from 11 august:

“Putin went on TV and called Prigozhin a traitor,” Grozev replies. “Everyone knows what they do with ‘traitors’ and Putin hasn’t done that. He wants to see him dead. He can’t do that yet. In six months Prigozhin will either be dead or there will be a second coup. I’m agnostic between the two but I can’t see neither of these happening.”

Is Grozev predicting one or the other will happen? “Yes, you can hold me to it,” he replies.