User blog comment:Illusive Dream/Fanon, Fanfiction - Open v.s Closed/@comment-4072803-20130923142518/@comment-4966296-20130923174813

Your character would likely be apart of Fanon (just say Open Fanon for now), and if you ever wanted him to be apart of a major Fanon-Canon or Closed Fanon event/series, then you'd need to apply for said series/event and have someone do a quick runover to see if he conflicts with the Canonicity of the series/or needs to have his abilities run through applications.

Unless of course, you want him to be a private character you only seek to use between yourself/1-2 others, then you are just as able to go fanfiction.