If they are looking at replacing the numbers that left to the sandpit, then they should be looking at recruiting about 70 to 80 pilots.
Unfortunately as 254 mentioned, a lot of the attrition came from the left seat, and i doubt many of the current senior FOs have the prerequisite qualification to upgrade to the left if any.
All the best to you guyz, the pride is really a good company to work for as a pilot.