Valid question,
A lot of the cadets going through the programme have said around the 750hr mark ABY will offer the contract to keep you after the 1,500hrs. If you're performance isn't up to standard they will continue to monitor your progress and re-asses at 1,000hrs then again at 1,500hrs.
ABY don't hire pilots other than direct entry Captain as they want all MPLs to fill in the other spots. They currently have 40 something 320s with plans on ordering 40 more. Recently got delivery of 4 so growth isn't an issue. At the end of the day they want to keep you.