so i was just thinking of how kikyou made the coment that if inuyasha used the jewl to turn into a full human it may purify it and it will just disappear. (spring special 2004)
so if that was true maybe we are being show how the series will end eventually.
kindof interesting as the jewl is the struggle between a human and youki kindof good verse evil thing, and we see the same struggle in inuyasha. so it would make sence that if the jewl were used to make a hanyou human it would win the battle and the jewl would be purified.
just a thought :-)