Preach said something on a video that stuck with me. Characters in MOBAs usually have only four buttons to ever press, yet they're some of the most deep characters you'll ever master in any kind of game, and it's because how variable each and every situation within the game is. If
all goes well, evolved jobs may enable them to create
true emergent combat design, which would completely change how XIV is played.
Now, you may be thinking:
"But they said you can still clear using ARR mode." to which I'd answer: You'll still be able to push buttons, but your rotation may literally become impossible to do as you know it today just by nature of whatever fight you're on.
Am I being maybe a bit too hopeful? Sure, I can accept that... but I also think we've seen way too little of the system and how it'll interact with the game to be making complete judgements on what will happen.
But what do I know...
https://media.tenor.com/c9d8u2ok8HsAAAAM/moth-drum.gif