Careful what you wish for.

Good gaming experience comes from combination of your own class gameplay and encounter(boss) mechanics themselves.
This game needs more interesting and varied boss mechanincs, not more overcomplicated class/job mechanincs.

Personaly I enjoy being a PLAYER, not an accountant with 75% of screen covered by timers and powergauges.
Have seen a Bahamut prime video where this is exactly the case - the player has gauges/timers everywhere (even robotic-voice audio-ques in backgroud), basically seeing almost nothing of how the boss or surroundings actually look.

At the end, he might just as well won a battle in Microsoft Excel and not epic bossfight in MMO.