I very much doubt that. Bendis also said the purpose for the original team to be in the present was to react to what was going on with their older selves in the present day. I have no doubt that we're going to be in for a big death come the finale, but I very much doubt that they're replacing their older versions. Jean has no one to replace. She's going to be affected most IMO. I have often stated that Jean would be horrified with what's been going on lately with Scott and the others in general. I've no doubt that her younger version will feel the same.
This book would be a whole lot more interesting if someone other than Bendis was writing it. That really is what has put me off of it.