The idea of a 'RWBY' and 'Batman' crossover is something that’s floated around fan circles for years, and honestly, it’s a pairing that makes too much much sense not to explore. While there hasn’t been an official DC Comics crossover with 'RWBY' yet, the series has dipped its toes into collaborations—like the 'RWBY/Justice League' comic series that brought Ruby and crew into the DC Universe. Batman didn’t get a solo crossover, but he was part of the team dynamic there. The gritty, detective side of Batman meshes weirdly well with 'RWBY’s' fast-paced, Grimm-fighting action, and I’d kill to see how Blake’s stealth plays off his ninja training.
That said, fan creations have absolutely run wild with the concept. AO3 and DeviantArt are packed with AU fics and art where Bruce Wayne ends up in Remnant or Ruby Rose patrols Gotham’s rooftops. It’s a shame DC and Rooster Teeth haven’t greenlit a dedicated project, because the aesthetics alone—Batman’s cape swirling alongside Crescent Rose? Iconic. Maybe one day we’ll get a Elseworlds-style one-shot, but for now, the closest thing is imagining how Batman would react to Zwei.