Not sure if any death is involved.They tout "The final fate of John Stewart." but that could mean anything...also the consequences for Guy Gardner for his disobeying the Guardians....who are completely bat-shit crazy at this point....could also mean just about anything. The only thing here that bugs(no pun intended)me is how Abin Sur knew all this stuff....started the Indigo Lanterns and noone else in the Corps knew anything about it or that he shared his info with...say....Sinestro who was supposedly Abin's closest friend. I always kinda dug Abin Sur as a character and yeah,with his very limited backstory,you can make the case that he could have been doing all this shit,we just never heard about it,but it seems pretty far-reaching. I would have bought the story that a few GL's taken into Abin's confidence and enacting a plan a lot easier than it being just Abin alone.
I thought it was stated in Blackest Night that Abin had warned the Guardians about the Blackest Night and Sinestro about it and a lot of this shit but nobody believed him.