If you haven't, I recommend you to read a previous blog about a big incident on one of the biggest wikia wikis in Spanish: User blog:Ciencia Al Poder/Portable Infoboxes, the first step into Wikia taking control over our content. Basically, wikia seems to be forcing the implementation of Portable Infoboxes on large communities. A Vanguard member comes to the wiki and propose to adapt some templates to Portable Infoboxes. If there are reluctant users to the change , they even create the templates to show the change. A lot of effort is put into convincing users to migrate to Portable Infoboxes.
What happens if a community decides to not use Portable Infoboxes, but instead find alternatives to it (for whatever reasons)? It doesn't matter. A Staff member (User:FishTank usually) implements the change to some selected templates anyway, and protected those templates from editing for normal users. This caused (and it's still visible) a lot of display and content issues on our pages (see this gallery to compare "old" templates vs "new PI" templates). Because this change was rejected by the community (which is different from a "not approved"), and causes issues, I reverted the change. My revert was reverted by another staff and I was demoted with the reason interfering with Fandom network operations.
Wikia staff hasn't made any official statement as of yet. And, sorry if you're disappointed, but I don't know what's Fandom network operations either, and why article content changes need to be approved now by Wikia staff even if the community rejects those changes. I've made this forum so you can stay informed about this mysterious Fandom network operations concept, and that wikia can now force changes to content pages (apart from the reasonable removal of ToU violations) about how pages should look, and who knows if that applies even to editorial content. Decisions made, remember, by a wikia staff that has no involvement nor relation with the wikis and communities. This is a very important fact that everyone that wants to create a new wiki on wikia should be aware of.