Party Quests after the Big Bang

All PQs remain untouched, if I recall correctly.
As for level range, the minimum levels stayed the same, but they removed a level limit. You can KPQ at level 200, ect.
There is a new prize system that isn't that different. When you defeat the boss, you are prompted with a window and you choose a treasure chest and you are rewarded.



Also, I thing the Dimensional Portal has access to every PQ. Instead of having to walk around the continents, you are just taken to a new PQ lobby.

That's all that has changed, I believe.

That pop up is so annoying because it prompts the Item screen too and sometimes you can't click a box in time.