No doubt that they will make changes, I can see them keeping the bases for the next few years make the changes in Hong Kong (based pilots salary's are cheap already and they have the immediate cost reduction from all the based pilots for the short to medium term In the form of the concessions that they have given the company) then no longer put people onto bases, and let them fade out, for FOs if you want to upgrade you come back to Hong Kong and join all of us on the new COs.
I believe that they even said that you return to Hong Kong on your previous contract if it is still available, well if everyone in HKG is on COS 18/20 then you can't return on previous contract as it's not available!
Reckon that the next few weeks and months will all be about Hong Kong based pilots, any decisions about closing bases will come later after the ground work is done back here in the main base.