Robbo reckons GC and Geelong would have already worked out the GAJ trade, I wonder if the AFC and Carlton have too and that's why Carlton have now publicly accepted he will ask to leave again at the end of the year.
It would make sense from Carlton's point of view, because from Gibbs' point of view the better he plays this year, the harder it would be for him to get home, so he loses some motivation to give 110%. So if Carlton were able to say to Gibbs "we've agreed to a price with the AFC regardless of how you perform this year", it would put him in the best mindset to play the best football he can play in 2016. The AFC also doesn't want him having a blinder of a year and skyrocketing his price so it would make sense for them to lock in a price as early as possible.