Maybe you've got the wrong idea about this wiki, but it's not for things that don't exist. Maybe someplace like Hello! Project Fanon would be more up your alley? Though something that appears to be about a Korean guy group might still be pretty far out for Hello! Project fanon.
Oh, are those some of your predictions or wishes to happen in the future?
If yes, then it's okay if you put those into your blog here, but we do not add those to actual pages. For that you can go over to Hello! Project Fanon Wiki, which Joshua already suggested you to visit.
It's still 2019, and there has been no official announcement regarding it (and even if it happens to come true I doubt it will be announced earlier than that year or at the end of 2022). As of now we can only view it as a prediction made by fan, or something that will happen in AU, which however, is not what this wiki is about.