Still going strong. Had a roadblock where I couldn't balance out the mechanics. By the end of the game you either ran out of cards or had far too many to make it challenging. I'm borrowing mechanics from cooperative games like Pandemic, where there are lots of ways to lose but only one way to win, and I knew I wanted one of the losing conditions to be when you ran out of cards. In my mind this represents entropy, where the human diaspora are unable to fight against the dwindling resources of the universe and fade into obscurity.
As you can see I've gone through a few different layouts with the map. I settled on a landscape format with the earth in the far left side and humanity's uncertain future on the right. It brings to mind a timeline, which fits the theme nicely, and also makes the last few eras much more difficult to traverse since they can be longer. When players navigate the human diaspora they play a card, move that many spaces, and end up at a Point of Interest (a star, galaxy, black hole, etc.). The players can then draw their route on the map in any way they like. Maybe it's straightforward, maybe it's time-consuming, maybe they use jump gates.
Now I need to create special abilities for each of the suits, balance the game for 1-4 players, and test some more!