Given that CX is a one world airline, there are basically no differences in elite mileage accrual.

Agreed no upgrade potential on AA code shares, but we can , as of nowm upgarde by buying a CX ticket on AA stock

My questions is what will happen to this upgrade ability if AA does start to code share. Would that see the loss of these awards or would it mean that we would be abale to upgrade on flights to HKG even if otgher routes are still not possible.