Beckham is due to return to parent club Los Angeles Galaxy on March 9.
“If he said ‘we’ll see’ it means he’s thinking about staying,” Ancelotti told Sky Italia.
“However, our hands are tied as he has a clear contract.
“We can’t do anything to change things, he can surely do so. He has to resolve his contract with the American team.
“I am realistic, we are capitalising on his presence at the moment and so, while we have him at our disposal, I don’t see why we shouldn’t make the most of his presence, as he is giving us a great deal.”