Under the mount system it says: "Examination of mount system (including chocobos)".

As it says "including chocobos" could this mean other mounts besides chocobos? I'd have a hard time believing we could mount any other mob in the game but it's a fun idea to think about nonetheless.

Ifrit battle sounds great. I remember when I came across that cut-scene for rank 46, the first thing that came to my mind was, "Am I going to battle this now?". Unfortunately, you don't battle him in that which was a disappointment in some respects. I'm hoping with this particular battle quest that they won't turn it in to another faction levequest but let us access it at any time at rank 50 as an actual story quest.