According to their latest update, production on this game has stopped while they work on a Kickstarter for another game.
Existing backers will get equivalent tiers of this new game, Knuckle Club.
A message in the comments below says they have not yet touched the KS money in case people are expecting refunds.
More details here:https://www.kickstarter.com/projects/829559023/confederate-express/posts/911522
Seems rather disingenuous - who's to say they won't do the same thing with Knuckle Club at a later date?