The standard bid to upgrade can only let passengers know up to a day before departure. I would imagine it's would be pretty similar (week to ten days out) after all the priority will be to sell the seats at cost not give them away.
Check your PM, if you haven't already. Might be of more help.
AerClub is just a complete mess.
Last edited by EI-A330-300; 2nd Sep 2017 at 16:43.