Just want to clarify a few things...
Interviews are still ongoing for the CPP. Also, classes are continually formed and shipped to Adelaide.
The "wait" period that people refer to is the time between graduating from FTA and starting at Cathay Pacific. There may be a wait after you graduate from the CPP but there is no reason why you won't eventually get hired (as long as you performed up to standard throughout your time at FTA).
When CX needs more SOs, the graduated cadets will be the first in line.