It's only 2 pages, but it highlights that X-23 may indeed be a part of the upcoming Trial of Jean Grey.
Special thanks to Bleeding Cool for the heads up.
Thanks to delaviux in the comments, we also have this heads up on a page that can be found on Bendis' tumblr. Bendis states it's from All-New X-Men issue 22.
More to follow on this soon! There's a story detail from All-New X-Men #19 that may or may not be playing into the overall picture of X-23's role on the team. A speculative post is planned on this, but it's also possible it may go a different direction. There's a story door open here for many possibilites and approaches.