With Batman: The Brave and The Bold ending, Warner Bros had various studios pitch a new Bat-centric cartoon.
Amongst them was a Bat-family show inspired by the DC Comics story arc "No Man's Land"...
It seems it would have featured the whole Pre-Batman Reborn family; Batman!Bruce Wayne, Catwoman, Nightwing, Robin!Damian Wayne or Tim Drake and making her animated debut Batgirl!Cassandra Cain.
This above picture is from Coran Zone.
He says:
"So James the Terrifically talented Tucker producer of “The Brave and Bold” series was starting work on the new Bat show and decided to take a chance on the new guy….Me! So I became character designer. I was floored as shit and had a ton of ideas for the darknight and fellers so I spent about 4 or 5 monthes cranking out a ton of of batty shizz! I did way more than any man should ever do and worked sometimes two nights straight without sleep on that stuff.
This is the sucky part> Even though all of the heads at Cartoon Network liked the designs one felt the premise (more of a “no mans land”) was too dark and grim so they scrapped it."
Aww man...
Looks like the perfect Batman cartoon I've always dreamed about...
Source: Batgirl to Oracle