I will be flying CX826 HKG - YYZ on Tuesday November 25th in C. Our Asia Regional Office is a corporate customer of CX and have given me a an "Upgrade Request Certificate" for that flight. This is my first experience with one of these certificates. What are the odds that I will get an upgrade?

By the way, I don't know whether this will have any bearing on my chances, but I am currently AA Platinum (OW Sapphire) and will be Executive Platinum (OW Emerald) by the time I take that flight.

Thanks