Is there such a thing as an op-up to a later flight?

I'm booked on CX889 this Saturday, which is showing:
F0 A0 J1 C1 D1 I1 W9 R9 E0 Y9 B9 H9 K9 M9 L9 V8 S2 N1 Q0 O0

But CX837, later in the day, is showing:
J9 C9 D9 I7 W8 R7 E6 Y9 B9 H9 K9 M9 L9 V9 S9 N9 Q9 O5

I'm CX Gold, but I've never tried this approach with CX. I'm assuming it's a very long shot but some here would certainly know better!

Thanks!