User blog comment:LuxrayBlast/Steve/ Alex/ Jesse Moveset for 5mash/@comment-26334236-20180310161935/@comment-31519587-20180409141058

Actually, Sakurai has played Minecraft. So it's possible that he will add Steve/ Alex. They are unique. He's also apparently played Undertale, so it's possible to get at least one indie representative. I say it should be Minecraft Story Mode related.