They haven't released a Zenos minion yet, so he'll be fine.
He should send in an application to the Scions just for the laugh. We don't have anyone on the team who can properly alternate from deadpan voice of common sense to extremely intimidating. Every so often, when you're in the middle of negotiating something, he could just put on that fanatical grin, prompting everyone to put their hands to their weapons. It would also be interesting to see his dynamic with Alisaie, given that they already have a bit of banter going over Azem.