User blog comment:MisterWoodhouse/Volunteering your Fandom wiki for early migration to the Unified Community Platform/@comment-30737249-20200413111844/@comment-44807868-20200414043635

I didn't assume that the use of the blog posts there is beyond just simply seeking community consensus. I don't know how the articles are structured there, but Discussions can't emulate article layouts too well, with it lacking support of wikitext. The limitations of Discussions can hinder the procedure, then...

Wiki-style forums are much closer to adaption of the article structures along with invoking discussion, but that feature isn't available on UCP yet. However, you can take a quick look at how it works; since based on what Fandom staff said about it, I'm guessing it might end up being added in later point of UCP:

"Since the Forums retirement has not happened, DPLForum was not sized as a Day 1 requirement."

- MisterWoodhouse

And I don't know what exactly will happen to the existing blog posts if the blog feature doesn't return, but I'd assume these'll be archived in some way.

All in all, there's no statement that the blogs won't return, so you don't have to worry about it for now. Whatever happens, I hope there'll be a good solution for the wiki! :)