I dunno man. He never ever plays Auba there. Even during periods where we had better wide options than CF options he still played Auba on the wing.
Unless Arteta shakes up the first eleven in a big way I'd be surprised if he goes into next season with Auba at CF when he's never looked remotely interested in doing it. The Pepe-Auba-Willian front three does work on paper though.
Arteta said this a few weeks ago.
"[He] is scoring a lot of goals coming from that position, he's done it all his career," Arteta said.
"We know he can play as a nine but at the moment the balance of the team is a little bit better like this. He is a team player."
That would suggest he’d play him up front with the right players around him.