Maybe Mentalism since they said a new genre, but he said Genre/series, so maybe a new series of something?
And what would a mentalist teach in a 1 on 1, that he is the best in the world at ? Billet switches? lol. I mean Basic mentalism would be quit hard to teach well on a 1 on 1 because there are just so much more then the secret.
I still think its the pass or second deals, because that is the request i have seen most since day 1. And there would make sense that they found someone that would be the best at that.