User blog comment:Xilinoc/Ch. -547 - The State of Affairs op. 1 - "Expectations"/@comment-1387259-20130724151011

Hopefully this means we'll get to see a lot of abilities that haven't been shown yet. There are clearly a few missing Bankai, aside from Kyoraku (Shinji, Ukitake, and Urahara, for starters), and with that, plenty of Shikai we haven't even seen (Yoruichi, Tessai, Hachi, the name of Iba's). Hopefully we'll get to see all of those.

And this is a stretch, but maybe the remainder of the numbered Kido will show up somewhere, and we'll have all (at least) 198 of them known.