Who is direction GOF and others?

[Ximena Valdivia]

Hi, I'm new so I don't know if this subject has been discussed in the 
past, so if it is I'm sorry I brough it up again.

Well, we know Alfonso Cuaron is directing the third movie but Chirs 
Columbus often comes and go in the set to see how things are going 
right? If I remember corrrectly (and I could be wrong of course) 
didn't Columbus said that he might come back for GOF? Now, my 
question is, can he do that? I mean can he arrive after the third one 
saying that he wants to come back and leave Cuaron out? what if they 
like waht Cuaron did and want him for GOF?
Well, so far none has seen what Cuaron's POA is going to look like 
but one of the reason why I want him to stay is because he has said 
that he want Dan, Rupert and Emma to do all the movies and not be 
replaced.