Imo it's obvious there would be a square enix rep again. Think of it this way, King k rool got in and he was popular, Chrom got in and he was popular more so in Japan, inkling got in probably because of timing and they were popularly wanted characters. Tails is highly requested by the sonic community and other fans but not that highly though in general so i said spirit or returning mii costume, that tekken character (forgot his name) wasn't really highly requested if you ask me probably because sakurai wanted as DLC personally, Black knight has been deconfirmed soo............ who is left who was a popular character? Geno, so far all majorly popular mii costumes were made characters. Plus what sakurai said "it didn't end up materializing" might of meant he wasn't able to finish Geno as a character or couldn't put in That game but next smash makes mores sense since it's mostly a fanservice game regardless if Nintendo is picking dlc characters. They are aware of his popularity too and he makes the most sense, because he has deep ties to Nintendo, would make great profits for Nintendo and square enix, a mario character to a degree, Purely owned by square, they already got the super mario rpg composer making music for smash lol, and would FINALLY complete the holy trinty of impossible characters and unite him back with mario and the crew.