New stage leaked?

It looks like someone on 4chan has leaked a new stage.

Spoiler:

The stage looks very while done and it's a job while done if someone made this.

It definitely looks to be a real leak, and much more so than the Great Bay leak which was just confirmed to be fake. Although, seeing this makes me think they're trying to cheat money out of us even more, the data for the stage was on disc and just unused...if it's free that's fine, but I feel they'd be cheating me out of the stage if not and just going the Skylanders route.

Oh the stage looks well done. It's a convincing leak. I'd like it to be real, looks like a fun stage. Dr Luigi should appear on the stage as well.

^ Was it on disc unused? If it was I hope it's free then.

^ Not the entire stage, but the name and objects appearing in the stage in an inaccessible file. Which makes me think it simply went unused even if it isn't fully accessible.

Oh so not the entire stage. It must haven't went unused and scrapped if it wasn't finished. Of course it could be finished. A Dr Mario stage is new and would fit well with the other retro stages such as Flatzone X and Duck Hunt so it would be a nice addition to the stage selection.

If I have to pay for this again...
I hope it's free.
I'm annoyed with the terrible pricing.
This is a very convincing leak though.