What are the current theories on CX F making a comeback by this summer?

I'm hoping to fly SFO or LAX to HKG in F, connecting through to somewhere else (assuming in J, depending on which destinations are open).

I see CX F availability in October onwards, but not a single seat in Y/J/F available with miles before then. However, it looks like CX is selling F on a lot of US markets as early as July or August.

Is the lack of award seats an availability problem or something bigger, where F isn't even actually available or likely to fly?
​​​​​​
I'm just trying to avoid wasting my time if there's something bigger at play beyond simple lack of availability. Thanks!