This guy is most likely just an evolution of slowpoke and not a Mega evolution guys. There is not a sign suggesting this is a Mega. Audino also seems to be having an ordinary evolution and not a Mega. Everything is possible though. Whatever they are, they will be welcomed! I love their designs.
PS: And to those who get angry over the designs, understand that the designers probably design the Pokemon first on the computer by creating the models and then they go and do the artwork for them, so don't worry about the artwork guys. The models look so much better.
