WOH!!! Eq, you've taken what I merely conceptualised and turned it into a commercial quality engine. If you spend some time concocting a decent stat development system, prepare a few high quality sprite sheets and write an immersive storyline, I reckon you could make some money from that there engine. Well done indeed!
EDIT:In the meantime: you
must make a game as is! NEO 2 would be awesome with this engine!