Originally Posted by NanaT
He said it was difficult for the production as there a re many 'leading actors' in this film and that scheduling them all was hard, He names Anna Paquin, Ian Mckellen and Halle Berry as well as himself as having other commitments and so could not stay long. He basically implies that all those actors will be returning to do more filming, (at least that's what I got from it). He mentions that they'd be filming by August, I think he thinks that's when the production ends.
he doesn't actually say that they will be back for more filming, i think you may be reading to much into what he is saying