How would you feel is level caps were integrated with the Main Story quests?
A thought occurred to me, although probably one of the more unpopular ideas, what if things such as level caps (EDIT: Synced instances) were integrated into the progression of the Main Storyline? It would allow for IMO, a much more "Final Fantasy" feel to the game (initially anyway). This could allow for a much deeper story filled with more boss battles and team oriented challenges (at-least for players starting from scratch).