Seems like Touka and Yomo were not doing nothing these 2 last years, just look at the size of of these crystals of their ukaku, they're quite huge.
With Uries will to get Shirazu back, I would not be suprised if he gets captured by Aogiri so Kanou can do experiements on him.
Kaneki looks like Teen Arima now, just with black instead of blue hair.