Re: if batman were to have a partner in the new series, who would you want it to be?
Dick Grayson. Use Dark Victory as a template for his story.
"Never call him that!" Spittle sprayed from Theon's lips. "Ramsay Bolton, not Ramsay Snow, never Snow, never, you have to remember his name, or he will hurt you."
"He is welcome to try. Whatever name he goes by."