That would make absolutely no sense. Its true that Aizen won't be defeated by the captains, but I highly doubt that there will be a break of several months, nearly all of Aizen's army is dead, its a do or die situation. Ichigo will make his way out of HM and duke it out with Aizen. Every major player is gathering, its the final hurrah. There is no doubt in my mind about this.
I've been following the latest chapter spoilers. Hana-san, it looks like Kubo has read your "heart" Ulqi-Hime fan-fic. Or at least it seems so . *Treads dangerously close to spoiler* .Sorry, couldn't resist that one.