Been wondering the same thing, but honestly might just have to do a run and submit it to the discord or something for them to actually get around to adding the dlc characters as categories. idk shrug

Though, also with the new character's inclusions... Should they be added as their own categories now for the Arcade mode runs? Cause I only see the option to do runs as the core6 roster of and Shanty, but not the rest of the dlc roster.