See some artwork for Batman: The Brave and the Bold here:
Star Wars, Batman Headline Cartoon Network UpfrontDefinitely not in The Batman's continuity. The Blue Beetle looks alright (that the newest incarnation of the Beetle, Jamie Reyes (would have been nice to have seen Ted Kord, though), but Batman and Green Arrow I'm not so sure. Maybe when I see some animation. Also of note, Batman's suit, which looks to be based off of the sixties comics and maybe tv show as well as the beardless Green Arrow suggest that this is the sixties (younger, just starting out, Green Arrow, at least) versions of these heroes. Doesn't really jibe with the version of Blue Beetle they're going with. Other heroes mentioned are Aquaman and Green Lantern (you're guess is as good as mine whether it'll be Hal, Guy, John or Kyle). Who knows what versions of the villains we'll end up with.
This has the potential to be really great, but I definitely have some reservations.
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Better quality images:
BatmanGreen Arrow, Batman, Blue BeetleThe character designs look a bit better at this size, though the team up of what looks like Silver Age Green Arrow, sixties tv Batman and the current Blue Beetle is odd.