I do think he'll sign because he did want to come back, but if Vanney and the Galaxy are offering more money/bigger role, he could choose to return there.
He likely would have already signed with them if he wanted to stay. I think he really likes it here and is wanting to come back.
He still looked quite sharp last year. He was in the same youth team as Messi, it's not time for him to hang up his boots.