User blog comment:MisterWoodhouse/Profile and Message Wall on the Unified Community Platform/@comment-37425278-20200305220307/@comment-20644-20200309152253

Since the first UCP release only applies to new wikis, migration of any existing wikis is still a bit of a way's out, and we don't have a decision on Blogs yet, I wouldn't be able to answer that question except to say that our intent is to always preserve content (barring some unforeseen technical reason for why we can't).