I have a similar itinerary as well SFO-HKG-DPS J redemption with Alaska for early September - seems according to CX current schedule they will start flying to DPS in late October, so very likely my flights will get canceled but still nobody knows how things really progress in HK. Things have been opening up the last few weeks but not fast enough. I have a Plan B booked with UA award via Europe (SFO-MUC-BKK-DPS) or I will look for whatever options are available with Alaska redemption once CX officially cancels - or maybe if they allow it switch to CGK.