level cap is 70, when you complete the game you get a chapter select, you can choose to play each chapter individually on Hard mode with all your items and such carried over, same rules as Remake apply, no items in battle and benches only heal HP, if your relationship with each party member is high enough you can choose via the menu who will go on the gold saucer date with you, for collectables purposes later.
Edit- oh forgot, if you carry over data to a new game you can choose to carry over quest completion data or not, so you can either redo the quests or already have them completed, quests that were only partially completed when you select a new chapter or start a new game have to be restarted.
XI Wiki




