I translated the teaser at the end and was googling around for whatever the hell it meant, so will just past this from their wiki:
At the conclusion of Season 5, there is a fast-forward to 2020, and the Mars 94 spacecraft is seen abandoned and adrift in deep space. To the tune of The Weeknd's "
Blinding Lights," in the ship's interior, a computer terminal activates and, in Russian, displays a DOS command prompt and states "Detection of GW 3.06.0451 //
Nikulov, Loading......"
https://for-all-mankind.fandom.com/wiki/Mars-94
Wonder if this means we're going to get FAM's 'AI is bad' arc that we're seeing in some shows (Lincoln Lawyer comes to mind)