Another poster said that the Circuit Overseers will be the next to go. I believe he's right.
I would imagine that sometime in '09 or '10 the COs will be replaced by local elders.
For decades there have been local elders who have the position of City Overseer, why not extend the responsibility of that position to cover actually visiting the congregations within the his jurisdiction? He could be trained relatively easily to fill in reports and beat the friends at multiple halls.
This would save the WTS tons of money. It would be an entire layer of middle management, ripe for apostasy, cut out.