You guys are so lucky, i've only gotten to volume 10....and that's where everybody finds out that Akito is really a girl....looking like a guy. And that she sleeps around with other members of the zodiac....only cause she has the power. Evil

Anyways, i think the grande finale would be a) Tohru breaking the curse, b) Akito dies, curse still unbroken or c) nothing happens and everybody goes on with their lives the way it used to be...........
This is just me, i'm just guessing, i haven't read far enough to REALLY give an accurate guess ^^;
Beware the Princess of the UnderWorld, mwahahahahahaha....*coughs*. ^_^;