The Forever People tpb also seems like it skipped theirs'.
But Gail Simmone's last Batgirl trade had a future ends issue in it. Superman/Wonder Woman also seem to have those. I think they'll mostly in the titles that changed their creative team.
I'v read the AC Secret Origins, and I think it'll fit well in AC vol6, since it's a new writer. Giving Pak more space with the story/stories he'll tell.