The Frenchman has yet to sign a new contract with the Gunners to extend his 17-year stay with the club, but Arteta is confident that the uncertainty is not having an adverse affect on the team.
He told The Mirror: "I don't know what the idea is. I think the boss has been here long enough to know when the right moment is to make that decision and the board too.
"Whether it is done, nobody knows, but that's not affecting what we're going to do for the rest of the season. I'm sure he will make the right decision and, hopefully, he'll continue."