The biggest change to the Batman mythos is that he started his career a nebulous 5 or so years ago. Which means that Batman had Dick Grayson, Jason Todd, Tim Drake, and Damian Wayne--at the least--as his partner Robin in 5 years.
Which is BULLSHIT of the highest order. It means that Dick Grayson is now 21-ish, started as Robin at 16? Bullshit! Bullshit!
But that doesn't have much if anything to do with this series (except that Dick Grayson's older age means he had a bigger connection to Haley's Circus). Dick has grown up, spent his time as Batman while Bruce Wayne was believed dead, and returned to his own identity as Nightwing.
And then Haley's Circus arrives in town, and Dick is drawn back into the soap opera of the circus life and mystery of how the circus made its money and why its owner was murdered and why he gave the circus to Dick.
And someone's trying to frame Dick Grayson as the greatest assassin in the world.
There's some fake drama with a new love interest I'm not all that interested in, but Dick Grayson is his normal likable self, and the mysteries are interesting enough to sustain a longer story. This one gets my vote.
Aaron "The Mad Whitaker" Bourque; despite the red on the new Nightwing costume. What the hell are they thinking with that?