User blog comment:B214/Volume 21 info & spoilers/@comment-26865730-20160408034729/@comment-27876048-20160408143916

Different systems aside anon may have an idea here maybe the queens and aces being left behind/unsealed may have a role to play in a plan to free Sirzechs, Michael, and co. Ideally without unsealing Trihexa in the process of course. Its to soon to say of course but maybe in future/sequel series this will be a major plot point.