Donovan has revealed that a move away from the US could happen, with several clubs expressing an interest in his services, but any talks so far have been at a preliminary stage.
He said: "I would love to go back to Everton. I love the people there and I love the fans there. But that said, I love being in America too, so we are going to take everything into account and see where it ends up.
"There's still a lot of time left in the transfer window, so we'll see what moves are made and, if it's serious, then we'll treat it seriously."