Rumour has it that Batman could indeed be joining Superman as the newest debutant in The CW DC TV Arrowverse. Batman is currently embargoed to Fox and Gotham but apparently Fox is willing to allow The CW to use Batman and the Bat family.
Moreover, Barbra Gordon, aka Oracle, and Batgirl are also rumoured to appear on Supergirl season 2!
Do you think any of these rumours will turn out to be true?