Lastly

Robin is dead – and this small Batman v Superman tease will certainly pay off in the first Batman solo flick. As Zack Snyder revealed, Robin died about 10 years ago, so this does open up the possibility of a Red Hood adaptation.
Although some other paths could also be taken – such as a prequel, in which we actually see A Death in the Family. Of course, it all depends on Ben Affleck at this point, since he will write, direct, and star in that Batman flick.
And this also brings up another question – will we ever see a Robin on the big screen, knowing that Batman blames himself for losing one? It’s hard to say – but we won’t.
