I've only watched highlights of Raw so I am not sure if he did anything beyond his involvement in the Styles/Zayn/Jericho/Owens segment, but what he did do in that segment was wonderful.
First off, the asshole-ish smirk to begin with. The, "I'm not a bad guy... I'm not a good guy... I'm THE guy", line was so good. Then the best part which I felt got overlooked in the mayhem was Reigns brushing Zayn off and basically telling him he wasn't good enough to be in the ring with him. His mannerisms at the end of the segment were good too.
I'm not sure if it continues. It will be interesting the approach they take to the Reigns/Styles storyline. Barring blatant ignorance, I can't imagine they would think Reigns will be cheered in this feud so maybe we will see more of this Reigns. I don't think he can be the face that they want him to be, but he's proven countless times how well he would be able to play the top bad guy role.