I also doubt they would tease a scene in space (shuttle, etc. where someone gets hacked) that would not be art of the base game, and if it was DLC or expansion content for the future: I do not recall games teasing future addon (etc.) content in the base game trailers either.
Long story short, we probably get to go into space at some point.
Whether that will be just for a mission in a limited environment like in GTA SA (I think?) where you go to Liberty City for a short mission via plane or if that will be a more permanent are you can visit at any time once unlocked, we'll have to see. I wouldn't mind being able to go back and forth if it wasn't just for a mission and assuming wherever you go has meaningful content and a certain size. Think of like the DLC world space additions in some of the Fallout games in concept.
In the end, we'll see. A bit of variety beyond the city is surely nice. Since anything can get old, too much focus on the city might feel stale at one point opposed to getting out or elsewhere at certain points in the game.
Long story short, we probably get to go into space at some point.
Whether that will be just for a mission in a limited environment like in GTA SA (I think?) where you go to Liberty City for a short mission via plane or if that will be a more permanent are you can visit at any time once unlocked, we'll have to see. I wouldn't mind being able to go back and forth if it wasn't just for a mission and assuming wherever you go has meaningful content and a certain size. Think of like the DLC world space additions in some of the Fallout games in concept.
In the end, we'll see. A bit of variety beyond the city is surely nice. Since anything can get old, too much focus on the city might feel stale at one point opposed to getting out or elsewhere at certain points in the game.