It worked so well the last time and provided one of the best threads we have seen in cricket chat. The Ashes sub forum isn't really seeing that much activity. Most of the threads which have been created - would work well in an official tour thread. A few threads like predictions etc can of course be created (again, like last time).
Most people don't visit the Ashes sub forum and thus the lower levels of activity there. Jason raised the issue as well a few days back and it is a divided opinion on this from the polls.
Another aspect would be cricket chat becoming almost dormant during the Ashes with Champions Trophy before it and then Ashes getting centre stage despite a couple of series on then.