Could this foreshadow something?

Let me destroy your hopes first by telling you that this is fake. Though it doesn't take a genius to establish that, as I stupidly used the European date system yet forgot to use the PEGI rating system. My dreams will stay dreams...

So fake leak by me, but it does foreshadow some stuff I'm working on. Some Mario Maker stuff such as SMB3 and SMB style sprites of those good ol Chargin Chucks. Also fuzzies, Skull boxes, and possibly the Koopalings for SMB. 

To be honest, I think enemy-wise, any enemy (with the exception of some more oddly functioning enemies like Grrrols) that has a 3D model in NSMBU should be in Super Mario Maker. I understand that they didn't want to make brand new HD sprites for some enemies, but it's no excuse for those that already have them in the Wii U Mario game. Take Fuzzies for example. They already have 3D models from NSMBU. They work in SMW and have sprites. All that would need to be done is make SMB and SMB3 versions of them and they'd be set. How they would work in the enviornment? Simple. If they're not on a track, have them sit in place like a spinning saw! When it comes to the Chargin Chucks, I know it'd be harder, but assuming the 3D World models still exist somewhere at Nintendo, they could do it just the same way, making sprites from the model for the NSMBU theme.