So I know there is some Issue with the story or something like that and people are pissed.
Prepare for your mind to be blown...
Sony and Nintendo worked out a deal. Mario makes a cross platform appearance in the second half of Part 2. It's basically a backstory pilot for a realistic take on the Mario IP, developed by ND. its separated from the other games within the franchise. It will come to PS5 and NS2 in 2022. Sony will also be licensing their iconic characters for the next SSBM.