*The backgrounds for the battles, and the battlers themselves got rehauled.
Secondly, you no longer have to REVIVE dead teammates outside of battle zones so the next battle they wont be dead. This is done automatically for you, saves headache.
*Also you can no longer jump to outside the map and be recentered - now, it wont even let you jump outside of bounds anymore at all in the first place. It stops you before the jumps even happens.