DC Comics Universe and Green Arrow #50 Spoilers follows.
How Does The Series Finale Tie Into Heroes In Crisis and…
…What’s In The Box From Justice League No Justice?
Green Arrow is on the run and being hunted; a big explosion causes him…
…to scramble to grab his former ward Roy Harper Arsenal’s baseball hat. Arsenal died in Heroes in Crisis #1; this appears to be the subtle tie-in to that series.
Black Canary saves him from his pursuers and later he finally opens the box Martian Manhunter gave him at he end of Justice League No Justice; presumably something that could end the threat of the Justice League if it ever came to that.
The box is empty!
Green Arrow is pissed…
…and attempts to communicate with Martian Manhunter, who is a super-powered telepath with super-hearing among other powers, while…
…Green Arrow seemingly…
…walks away from the mantle of Green Arrow…
…for now.