Liked -
This is exactly it. Quests will be just that, gather item + hand in item, collect Reward. Fight target, collect Reward.
There isn't much reason to change this, and from the Alpha footage, it's the best option during low levels in order to progress on your character, because it will teach you how to play the game, and you get to explore the world a bit.
Then after the low level, hopefully there is a large variety of things to do to "progress" that way everyone is happy.
Some people like to grind, some people like to quest, some love dungeons, some like to gather or craft, some like solo play, and party etc etc.
Solo Questing in an MMO (especially a Final Fantasy MMO) is a bit ancient, to spend too many resources on.