Questions about continuity.

I've been following this subreddit intently for a while now. I am excited about the game, but I have just one concern: What sort of continuity will there be?

With randomly-generated maps, randomly-generated weapons, and randomly-generated enemies, I do worry a bit about what the community will build around. It will be hard to share a common love for a specific weapon, a common hatred for one type of enemy, or any sort of attachment to a certain environment. I think home worlds will do a lot to alleviate that situation, but I do think people will eventually grow tired of the "look at this cool guy/weapon/thing I found!"

I might have missed something, but are there going to be common bosses? A common intergalactic mission? Some sort of epic struggle? I just want there to be a community that grows out of this awesome project.