It looks like Ichigo can’t pull off any powerups without getting beaten within an inch of his life. This chapter was pretty standard training for him, as Tensa Zangetsu attacks mercilessly to “rip out” his despair. It was interesting to see what Ichigo’s inner world has become after he became a wimp and lost the will to fight. Turns out his zanpakuto is still working with him, just using the standard “kill you to make you stronger”. And now that Shirosaki is back (using Ichigo’s SSJ3 hollow form no less) it is possible the super hollow form has something to do with Ichigo’s despair. Hopefully some answers about the form will be revealed soon.
Back in the real world, I’m sure nobody is surprised that Aizen already knows Ichigo is off training (“just as planned”). I am surprised that Tastuki and Keigo are able to withstand Aizen and Gin’s combined spiritual pressure, considering that even Espada-level Arrancar had trouble in Aizen’s presence. They probably have a decent amount of reiatsu themselves– this is no low level spirit absorbing ability (like Yammy’s) they are up against. Nevertheless, Tatsuki is unlikely to be able to do anything right now, and luckily for her some new has shown up for the cliffhanger. There are a huge range of possibilities of who it might be, from one of the good guys still in Karakura Town to someone from Hueco Mundo. Some of the Espada are not dead for certain either, so it’s not improbable it could be one of them. Feel free to make guesses though =)