Great Western Trail: Rails to the North was expected to be available at Gencon. According to Eric Martin (Boardgamegeek News) this is no longer the case:
Adjust your @Gen_Con 2018 shopping list as Great Western Trail: Rails to the North from @eggertspiele won't make it to the show for sale or demo due to production issues. Better perfect than rushed, I says! —WEM pic.twitter.com/gIKzzaGIlF
— BoardGameGeek (@BoardGameGeek) July 17, 2018
Our German supplier still lists the expansion as an August release, but I didn’t had the chance to talk to him about this. I will post an update as soon as I know more.