If Compass gets more airplanes, expect to see the first year pay raise again. If not, only if they have trouble staying ahead of attrition.
Our contract says: "The Company may further raise first-year FO pay with 30 days’ notice to ALPA. If first year pay gets to within 2% less than second-year pay, the remaining FO pay steps will be increased so as to maintain current percentages between the pay steps." 30 days isn't much time. They'll do whatever they need to fill classes when they want - so the market decides whether or not the pay goes up.