I dunno if it'd fit into the plot of abyssea entirely, but a Nomad Moogle in the base camp of each abyssea zone would be a freakin' godsend for all players.

Make switching your jobs reset your light powers. Mainly what we need is the ability to access our merits and ability to change jobs. This would streamline the leveling process of abyssea exceptionally and save us a lot of time as players.

Just my 2 cents.