I was expecting him to be Nightwing instead, but the article suggests they went with Robin to distinguish it from the Nightwing movie being developed. Still, I wouldn't mind if they showed his transition from Robin to Nightwing in the show -- and did it better than the original comics did. I read that storyline for the first time recently, and I was surprised that the big debut of Nightwing happened when none of the other Titans were around, because they'd all been taken captive by Deathstroke -- and that it happened on the same page as the debut of Jericho's costumed identity, which kind of stole Dick's thunder. I'd had the expectation that the Nightwing reveal happened while the other Titans were around, but now that I think about it, I must've been thinking of the Batman: The Brave and the Bold episode where that happened.