How subjective are "new facts" in the Smash bros 50 New Facts Direct this Thursday? Update: Direct also called "50 Must-see Things"

[mysticwolf]

Cream147 said:
As long as he talks a bit about some of the new game modes and confirms there's a stage editor, I'm going to be satisfied.

I can confirm that there will be a stage editor. 

Mostly because if there wasn't, Nintendo would just be plain stupid.