User blog comment:Brandon Rhea/How we're testing the fandom.com domain migration/@comment-24361909-20181001113002/@comment-20644-20181005160831

No, there won't be a redirect from that old style. If you create [name].fandom.com/pl after the new change, then pl.[name].fandom.com would have never existed so there'd be no technical need for a redirect within the system.