It'd be cool to get some new abilities for your chocobo companion. Maybe teaching them their own Choco Meteor (that I know Blue Mages can cast) for the DPS role, Esuna for the healer role (it gets annoying when I'm doing FATEs and get paralyzed or slowed), and Cover for the Tank role (the Tank role feels pretty useless as you can easily steal back aggro by pressing your buttons normally, Cover would let you utilize the chocobo's tankiness regardless).