So, I've really wanted to do Project SMB, but since Daniel T. Gaming made something very similar to what I had in mind, I feel it would be stealing his idea.
However, I've come up with a new idea! Making the same thing, but for other games. Vote in the poll above for what you want to see! In short, Project SMB is not 'discontinued'.
Also, you may be wondering what the idea of Project SMB is. It's basically bringing everything back from a game into Mario Maker.