2B from Nier: Automata is coming to Soulcalibur 6 as a guest character.
The Square Enix / Bandai Namco crossover was announced at Paris Games Week, and there's a video, below, showing 2B slicing and dicing while using some of her trademark abilities from Nier: Automata, including a teleport and the pod support system.
2B, who has beef with veteran Soulcalibur 6 character Ivy for some reason, is an interesting choice for a guest character since she's an android and Soulcalibur is a medieval fantasy fighter. But, then again, Darth Vader was a guest character in Soulcalibur 4, so really anything goes.