Quote Originally Posted by Harima Kenji
I don't know if this is spoiling or not (since I'm just guessing and I haven't read the manga), but in the OP we see Ichigo fight it out with his Hollow version.. So I think that they'll fight for dominance or something...although I think it is too early for Ichigo to be able to control his Hollow part..if that's even possible.
To me it looked like one of the fightings that Ichigo have had before.. think it when he was gaining Bankai or maybe later.