It's interesting how you can often see the "exit points" of a TV show in its season finale, where they show how things would end if the series were to finish, and then see how they branch off into setting up a new season.
If LoT ended now, the story would have been:
- Rip nobly sacrifices his life by flying the meteorite into the sun, thereby saving the world and stopping the future possibility of time travel
- Sara, wanting to avenge Laurel's death, goes back to Star City to fight Darhk in the Arrow season finale
- Kendra and future Carter live happily ever after
- Stein and Jax return to their families and jobs and remain on standby for other appearances in the Arrowverse
- Ray experiences an existential crisis and shrinks himself out of reality
- Heat Wave returns to a life of heists, but is empty without his partner
Another stray observation: Hourman specifically orders the team not to step on the ship. This could be a big hint that the show is going to drop time travel and keep its cast in 2016, which I've mentioned before that I'm all for. I'd still love the Wave Rider to go flying around the world though.
I remember before the show first came out there was a trailer which showed a fight with legends + flash and arrow in some warehouse against savages soldiers in the future I think. Was that just a trailer or was that something that was meant to happen that got cut? I cant remember if that happened or not! but I don't think it did?!?
That was never going to be an episode. It was test footage to pitch to the networks (although it was pretty much already a lock for the CW at that point).