I am wanting to book 2 CX biz seats SIN to PDX with a stopover in HKG of at least a day, up to 3 days, leaving SIN 11/21 or 11/22. The only leg that biz seats are necessary is HKG to whichever North American entry destination we snag (SFO, YVR, LAX...). I have searched using BA and seen nothing in biz available but I do see PE and some coach at times. On AS I see absolutely nothing after Nov 10. Should I expect a new wave of availability come out over the next few weeks? Is it wishful thinking that we would find 2 biz seats on the same flight? Is there any value to booking a PE or coach when it comes up and watching for biz to open up? Any other tips you all have for me?

Am new, so please be gentle. Studied up as best I could, but there is a steep learning curve!