What were the biggest challenges to crafting the endgame of the show?
Lindelof: The biggest challenge was that a good ending reveals what the show is about all along, what the audience is supposed to care about and I think the key was what is a really simple ending? I think so many endings just get bigger and bigger and bigger and I’ve experienced this myself, the bigger an ending is, the more moving parts it has, the trickier it is, the harder it is to zero in on what the fundamental emotional idea is, and so we had to basically clear away all the brambles and say “what has this entire thing been about from the word go?” We’re in episode 28 now, how do we want to feel when this over? Who’s in the last scene? What are we supposed to care about?
Were there any questions you wanted answered in the final run, and did you answer them all?
Perrotta: You asked before what the biggest challenge was, and I was thinking we had to decide who our essential characters were and what those essential questions would be and that was a challenge. You’ll see as the season goes, there are characters who were historically important to the show and their stories aren’t fleshed out and some other characters are. We created this big ensemble with a lot of characters and incredible actors. We didn’t have a kind of ability to follow everybody everywhere.
Source and more: Variety