User blog comment:Brandon Rhea/How we're testing the fandom.com domain migration/@comment-36336222-20181007191452/@comment-4261769-20181007221223

The new URL will be replacing .wikia to .fandom

A redirect for .wikia will still exist so even if you were to use .wikia it will still redirect you to the correct wiki you want to visit (.fandom)

For your wiki examples, disneyprincess.wikia.com would become disneyprincess.fandom.com

ex515.wikia.com would become ex515.fandom.com