I CAN"T be the only person who noticed during the event mode section of the 50 fact video there were a lot of... familiar looking windows. It seems like they recycled a good amount of events directly from brawl. I recognized two kings and a zelda event for sure, and there are likely plenty more. Of course, there were some new events on display, but in general I feel like this was a late add and they got lazy with event creation.