According to our sources, Final Fantasy 3 for the DS will put less focus on the characters' health points and more on their defense meter. When your character strikes a monster, its defense meter drops and the monster executes a blocking animation. Completely deplete the enemy's defenses and your character will attack directly at the monster's health points. This new innovative concept could bring up new strategies and abilities as well as the turned-based battles looking more realistic. Final Fantasy 3 currently has no solid release date as of yet.
http://ruliweb.dreamwiz.com/ruliboard/read.htm?num=2553&table=game_nds&main=nds
thanx to Basic-Zombie from IGN boards