I remember I had saboteur bonus available at one point for Serah butI didn't pick it then. Now many levels later I decided I want it and it wasn't in the list anymore. Hasn't been for quite a while if I recall.
Did I miss out on it for good? Cause Noel had the bonus available after I took the role for him.
I literally serched for hours in the internet and found no info on this.
You'll get role bonuses offered to you for the two eligible roles you allocated the most nodes to during that stage of the Crystarium. You always get offered the role bonuses of roles you have leveled to max. If you want the SAB role bonus next, you should make sure you level up her SAB at least 2nd most out of the roles you level during the next stage.