Time can change. It's not linear. It's a big ball of wibbly wobbly, timey wimey...stuff. But, your own personal future....if you haven't seen it, then it can still change. And, just because it happens in the show, doesn't mean that's what happens in every version of our reality.
Why would you want to know how things turn out. When it's still the adventure to come? I know I die, but I don't know when or how. And I'm alright with that. I don't want to go, but if there are future faces I must have