nope, I don't think there will be one. Hopefully they don't even TRY to release the long rumoured "true" video ipod until they have a 100% perfect design and non-scratch screen. Maybe some sort of nano? That is the next to be updated.
If Apple releases any new iPods BEFORE October 15, by the time the Holiday shopping season begins people will have already forgotten about them.
If they release new iPods between October 15 and November 1, they will be fresh in people's minds, and once again iPods will be the hottest gift for the Holidays.