robin is NOT a sucky character. might as well hate batman. robin has been around as long as batman has minus 1 year or something...and you're wrong. batman could have died plenty of times without his partners. whether it was robin, nightwing, batgirl, huntress, w/e.
anyways...i wouldnt mind a teen titans movie with nightwing. but if nightwing randomly showed up in a batman movie, THEN i would have a problem with it.