For sure there will be some major differences on the rules and order of the battle system which is something that most of the Game Companies want to achieve. Putting the battle system aside, what really stands out are the marvelous visuals preserving the very Moe look of the characters. The background music is truly amazing which contains a great score that carries the battle aura all through out the matches.
So far there's no plans yet if the game will be ported in English with chances that it will take a year for the English version to complete. Too bad that gust didn't push a multi language development of Atelier Ayesha, it could have been a hit if sold globally.