The problem is the Arsenal board won't remove Wenger so he will only be leaving at the end of his contract which means the end of next season. Will Ancelotti still be looking for a job then or will he have been snapped up?
If he still thinks he can achieve something as manager I'm not so sure. He was clear before signing his new contract that he intended to still be managing this year whether at Arsenal or elsewhere. If we win silverware I can't see him stepping aside for another manager. Not while he still has a year to run on his contract anyway.