So many things can be learned from this!

Super Mario Maker was announced alongside Splatoon at E3 2014, so it isn't too new to be added in game.

Slopes are somehow in the stage, is that gonna be added to Super Mario Maker?

Would you prefer it if the Stage Creator was more like the actual Super Mario Maker edit mode?

Could this be foreshadowing for a Stage Creator update?

Will there be any more cross promotional stage additions?

Discuuus!!!! ^w^

Here's hoping for a Splatoon stage.