For this entry, two things are relevant:
1. The new expansion brings new jobs, and in my opinion one of them must be a tank for the sake of us all. (I personally would love to tank 75 levels again.)
2. I have wanted Chocobo Knight to be one of the new jobs since forever. It's perfect for San d'Oria anyhow so it makes sense.
This is how you get Draco to buy Wings of the Goddess. Need I say more?
Please be Chocobo Knight, please be Chocobo Knight...