March 31, 2021 is now doomsday for a number of Mario games - Destructoid
But that's also the closure date for Super Mario Bros.Oh, and Nintendo is apparently stopping the sale of Mario 3D All-Stars (including physical sales!) and the Game & Watch portable on that same date!
I'm sure most of you have strong feelings on the whole "limited time" sales tactic, but it's entirely possible that several of these (probably not Mario Maker's closure) will be overturned: just like Jump Rope Challenge.