I can't speak for the new 52 but before it was my understanding that grayson becoming nightwing was a show of how much he'd grown beyond the role of robin, them playing this as finally him coming out from under batman's shadow is kind of silly because they've played that card before right? I don't follow specific dc characters too closely and mostly just pick up the big events but unless something about his character has drastically changed with the new 52 grayson has his won identity and taking that away from him isn't going to help him grow as a character. also if he's faking his death continuing to go by "grayson" may not be the best way to avoid detection.
and yeah to be fair dc and marvel are always picking stuff from each other's successes, nova core is basically marvel green lanterns, lobo is knock off wolverine, the sentry is marvel's superman, moon knight is marvel batman. and of course deadpool is deathstroke
and yeah to be fair dc and marvel are always picking stuff from each other's successes, nova core is basically marvel green lanterns, lobo is knock off wolverine, the sentry is marvel's superman, moon knight is marvel batman. and of course deadpool is deathstroke