Actually I'm not too sure about things like this but when there is no club that wants to bring Ronaldo and the desperation of wanting to move can actually be another factor for him, but indeed this is a frustrating step because I personally expect him to move to a bigger league others even though things like this are still difficult now.
Actually I quite feel that this is indeed a difficult thing because I don't want to believe he will move again but with the condition he is at Manchester United it is clear that moving is the solution.
With the problems he is facing now, indeed leaving Manchester United is a solution if he does not find a solution while staying at a team that has made his name. It was a shame when he came to help this team and in reality it wasn't what most people expected. I think if he would have known it was going to be like this then he would have chosen Manchester City even though a lot of his close colleagues didn't like him. Honestly, I don't see that his situation at Manchester United will improve.
But something like this can only be a frying pan for some media who only want news to exist so that things like this continue to be given seasoning so that they can continue to bring up other speculations.
Even if we see now Ronaldo is back playing in the Europa League line-up.
As for indeed if he really will leave I'm still not too sure he will return to Serie A.