It really doesn't, but if they just make the same hub like world as in 5 but with more sidequests and enemies sprinkled around the world I think it would be great. 5 was too barren when it came to the open worldish element imo.Do we need that, though?? Doesn't need to be open world.
Still, if they go full open world I just hope they'll make sure that it's not just a vast area with nothing to do except travel.