Board Thread:Council of Arrowverse Wiki/@comment-9346948-20190122070735/@comment-807326-20190123084234

IHHeroes wrote: An option that we could do in case we are worried about ever switching again is having a template in which you can either put in "Two", "2", "Earth Two", "Earth-2", etc. as the first parameter and it will style it the way that the wiki is currently wanting to style it. For example, if we change to Earth-2, then all of those inputs could make it into Earth-2.

But I do realize this is just another template to keep track of. But if we change the format now, we will have to go through every link anyway. As well using this, it would reduce the number of infobox edits because we could just take the homeuniverse input into that template and then be done. There's really nothing wrong with doing that, but it's more a matter of page titles, quite frankly. That being said, I think we've had enough inter-dimensional travel at this point that we can come to a definitive consensus. When we initially decided on using the full words, we'd only had a few episodes where there was proper travelling between worlds, so it was a relatively new concept, but now it's pretty old.

I'd say whatever we go with now will be it permanently, so long as we don't have some official source that tells us otherwise (to the effect of a showrunner saying "it's Earth-1, not Earth One").