Was on Twitter earlier and saw someone had asked Kyle Higgins about what would be covered in Issue 0 of Nightwing. Higgins said that the issue would cover Dick's shift from being a circus kid to becoming Robin and would not touch on his transition from Robin to Nightwing. Slightly disappointing news really, given that the previous issues in the series have chronicled his transition from circus kid to Robin well enough for even new readers to understand.
However, I did ask Higgins if he would cover the transition from Robin to Nightwing in future issues. His response was (and I quote) "I really want to".
Am I the only one who finds it a little strange how they're planning to cover the origins of Grayson becoming a member of the Bat-family without touching on how he became Nightwing? Particularly given that the issue will be published under the Nightwing name.