User blog comment:MisterWoodhouse/The Future of Gamepedia/@comment-46644589-20201110112019/@comment-24931587-20201110183028

Already answered in the blog. Since both wikis are active, one will get the minecraft.fandom.com URL and the other will become minecraft-something.fandom.com. We don't know exactly what the something part will be, it'll be decided by staff.