Well. redemption, if one truly seeks it takes a life time of work. Magic girl four is willing to dedicate her life towards fighting the enemy and is more then forgiven. That came from within, not just forced by her change ( though it was a catalyst)
Aneeza is a tougher cookie. She obviously won't be hurting anyone and most will leave her alone... But forgiven? Probably never. People know who she was, there is no escaping her past life, no matter what she does with her new life. That's... quite a heavy load.
Still one can be optimistic of opportunities that may present themselves ;)