Submission of new rounds of IB predicted grades. Is it possible?

My school does two rounds of predicted grades, once at the end of October and once at the end of November. If I submit my October predicted grades for my ED/EA schools in the US, is it possible for me to update my grades on the common app when I receive my November predicts (as I think it will be better than my October grades)? If that isn't possible, I will have to keep some of my universities known for deferring EA applicants (like UMich and UVA) for the regular decision round. Thank you!! (There was no answer to this question online elsewhere, please help!!)