User blog:Magma MK-II/Villains from upcoming movies, games, etc.

This is something that been bothering me for quite a while. Basically people creating articles for characters from media that haven't been released yet. EvilLamp made a good point about not allowing this sort of thing, and I agree with it.

I want to make this a rule, to not allow articles on characters from movies, games, etc. that haven't been released yet. Any thoughts on this are welcome.