SpaceSimCentral

Its a little cryptic but seems like its going to add some nice content to the game and looks to be coming out with or shortly after the 7.0 update.
Steam: [url]https://store.steampowered.com/app/2700340/X4_Timelines/[/url]

Very vague as the X games are not known for their story.

Out on the 20 of this month, still not download the game.