Six Characters We NEED to See in The Bad Batch Series
https://www.youtube.com/watch?v=chjWkFaPwNI - from the Star Wars Explained YouTube channel (5 mins long).
BTW, the Dryden Vos scene from TCW season 7 has a Falleen present, so maybe Xizor being properly recanonized isn’t too unlikely. I agree that Maul might be a bit overkill a this point, though I wouldn’t mind, but having the Bad Batch get involved with Crimson Dawn at some point seems like a really obvious thing to do.