Thanks for the video this was really helpful!
I think you pretty much covered everything in the game. I did end up spending a ton of my demo day getting ready time on saving/loading and it's interesting that it wasn't as important as I thought it'd be. Also this is where your name comes into play, it's used for creating saves.
The next thing I'll work on is probably combat functionality.
I think you'll have a dialogue with the NPC. You can threaten them in which case they'll give you some loot and leave. Then if they choose to fight then you'll have the choice to "autoresolve" where you board and your crews fight it out, or do a ship battle where you fire cannons at each other.
I'll also try to work on UI a little bit and at a minimum make things bigger and fix some of the hotkey issues like esc not leaving the pause menu.