User blog comment:MisterWoodhouse/Volunteering your Fandom wiki for early migration to the Unified Community Platform/@comment-30737249-20200413111844/@comment-44807868-20200414153604

I forgot to point out: it may be that your wiki doesn't even get selected among the wikis for early migration but at the later point (3-4k wikis are a small portion after all); and by the later point, I'd assume the remaining features might have been added. And for the early transitioned wikis, staff would likely take steps to ensure compatibility with the wiki.

MisterWoodhouse would shed light on this better than me.