Star Wars: Andor

Finally got around to watching the finale last night.
What an epic episode to finish off one of the finest written and acted shows I've seen.
I guess the only real question I have; did Andor return to Luthen's ship to actually die--from the grief of what all happened since he left? Or was it to team up and take the rebellion spark to the next level, which is what I presumed?
I am also really curious about his sister and can't possibly believe the writers forgot about this...just seems like it given Andor suddenly had A LOT of stuff going on that he was just seriously waylaid in his quest.
he knew Luthen was there to kill him (why else would he be there?)
so he was facing a lifetime of running from The Empire AND Luthen or to take Marva's speech to heart and try/fight

the sister 'might' be a macguffin - Maarva told him to forget about her - and if the search for sister was the only thing giving him purpose and now he has another purpose, it would honor Maarva's memory by accepting the futility of his quest
- while that could work for a written story, that's hard to pull off for tv/film
BUT that seems to be something Tony Gilroy gets off on - making narrative traps completely obvious once revealed