LogFAQs > #979665527

The problem is, Nintendo would never let that stuff from their IP be included in the non-Nintendo versions of the game. Either Bandai Namco would need to find decent exclusive content for the other versions of Soul Calibur 7 to make up for the lack of the Nintendo stuff (like they did with Spawn and Heihachi in Soul Calibur 2) or they would have to make the game exclusive to Nintendo's system, which I doubt they would do.

A better idea would be to not even bother with the Soul Calibur name and just make a full-on Nintendo x Bandai Namco crossover game, featuring weapon-based fighters from a bunch of franchises on both sides. The Nintendo side could have characters from Zelda, Fire Emblem, Xenoblade, Kid Icarus, even some oddball picks like Meta Knight from Kirby and a few Pokemon like Scyther and Sirfetch'd. The Namco side could have characters from Soul Calibur, the Tales series, the Souls franchise, Elden Ring, Baten Kaitos, Scarlet Nexus, even some anime characters whose tie-in games Bandai Namco develops or publishes like Trunks from DBZ and Kirito from SAO.

That game would sell like hotcakes despite being Nintendo-exclusive, and then they could use that money to make Soul Calibur 7 better later on.