I mean, after it's funded the project creators can do anything. Nothing stops you from adding more stretch goals

those aren't actually guaranteed or anything by Kickstarter. That'll be great. I've already got a digital download, steam copy, and physical PC copy but I don't want to open it (plus my PC doesn't have an optical drive because those are so 2000s) but I'd buy a WiiU disk.
Make the forum great again.