User blog comment:TVthePunisher/Bleach Episode 287...start of a new filler arc?/@comment-1690831-20100818060414

Personally, I think that the next long filler arc will come out when there are no more Volumes released for them to animate. This has pretty much been the case for every other long filler arc, with the small exception of the Amagai one where they could have done another Volume to animate. Anyway, my point is that they usually decide to do a long filler arc whenever they animate every single volume out at the time, which means that if the Arrancar arc (assuming that this is still actually the Arrancar arc) decides to conclude in the manga soon, we might actually have our next long filler arc be something that isn't completely random and be written into the story :D

Probably not though, but I still hope.