Look, don't get me wrong this guy has been our greatest wicket keeper/batsman in our ODI history, but really what reason does he have to play on after the World Cup? He has said himself he is not going to be around for the next one. I wouldn't be saying this if he was scoring hundreds everywhere like Matthew Hayden, but the results just haven't been there.
Given that he is a constant complainer about the compact schedules for the Australian team and the hectic nature of next summer it might be time for him to hand over the reigns. Haddin is a more than capable successor and Gilchrist could possibly extend his test match career.
I think, especially if Australia win yet another World Cup it would be a good stage for Gilchrist to hang up the gloves in ODIs.