Kiko has been fighting the one way his whole career. It's hard to change styles late into a career. His style got him to a world title so why change something if it's not broken.
I don't know the details but he is not with Sarmiento. They made a comeback fight against a journeyman in Barcelona, but split a couple of weeks ago. There are rumours that are in talks with Juan Carlos Payano to fight for the WBA Bw belt in April. I asked Payano on twitter and he confirmed that they are in negotiations. Payano is with Haymon. I think it is possible a Payano-Kiko and Stevenson-Campillo in April. Maravilla confirmed that they are talking about it too.... but nothing confirmed.
Bernard Dunne: he caught lightning in a bottle for one night but in reality he wasn't good enough to hold a world title and Munroe would have beaten him IMO. Shame that fight never happened.