User blog comment:Brandon Rhea/Wiki domains will be changing from wikia.com to fandom.com in early 2019/@comment-36497720-20180816164033/@comment-20644-20180816202730

In regards to examples like the Cancer wiki, we're going to be exploring some potential solutions for the cases like the Autism wiki that you mentioned. There are some options for how to best proceed there, and part of that will involve talking directly to those communities and finding out what they feel might work best for them. We have several months in which we can do that as well, since this change won't be happening for awhile.

As for decreasing the number of users, we've actually seen the opposite. We'll go more in depth with these numbers in future blog posts over the next few weeks, but two big things I can say are that:


 * 1) The number of contributors and the number of people using the site in general are increasing.
 * 2) In the comprehensive FANDOM app, where all content types are in one place and the FANDOM branding is incredibly prominent, we've actually seen higher than normal user retention. In the past, we haven't really seen any increase in retention but the app is actually doing just that, which is exciting.