Actually, I'm only using summoner as an example, but one thing I really dislike about the job system is the method of advancement. I like that progression and obtaining skills for jobs requires questing, but every job currently in the game quests in the same manner. It's always the 6 quest, 'mobs, nm, nm, chest, boss' structure

What I'm hoping is for future job advancement to flow in more unique ways, and an excellent place to start would be with Summoner. Why not have their questing based around the seeking and defeat of their summons? A fairly customary tradition for FF titles. Creating difficult summon battles, perhaps with their own quests leading up to each one would provide a steady sense of progression, with exciting content every few levels.

Or further examples for potential jobs, Machinist having to buy tools from the various towns and locations in game, or Blue Mage progressing by, well, hunting mobs to obtain BLU magic. Basically, anything that makes each individual job a more unique experience