Couldn't they do both, this is probably blasphemy to fans of the original but I see no reason why you can't have "intellectual" and "FPS" in the same game, perhaps as a primarily turn based game with FPS elements (sometimes if you want it done right you have to do it yourself) or as I'd prefer a FPS game with strategy elements crucial to it.
For example of the latter I've often daydreamed about an FPS where I get to be an entrepreneurial space pirate, starting off with only my wits and a pistol and working my way up to commanding a fleet, perhaps even an empire. The point being that as one wo/man the player can only do so much and they're just as mortal as everyone else, y'know you can't take over a space port by yourself, so the player will need help if they're ever to be anything more than a petty thief or assassin. Which brings us to the very nature of being a leader, personally I find RTS games to be wildly unrealistic (turn based even more so) because they let you micromanage too much, or rather in the wrong way, people aren't just mindless drones that do exactly what they're told.
I want a strategy game where I control the battlefield through a radio (incidentally giving away my position to my enemies whilst doing so), having to listen to my squad leaders explain to me what's going on while I stare at a map or watch over security cameras (assuming I actually have acquired either of those) and later going to a particular squad's location to either help out, see for myself what the hell's going on, or to shoot whatever subordinate is being insubordinate (all the while still in radio contact with other squads).
I want a strategy game where I can't fly every ship, instead I have to hire captains and crews, people I can trust or at least fear me because there's no guarantee they're not just going to fuck off with it, especially in the heat of battle when things are looking grim and my ship's temporarily immobilized because I'm busy personally hunting down a boarding party (or at least directing the hunt) and organizing repairs to account for their sabotage.
I want a game where by the end of it I'm stuck behind a desk somewhere, doing paperwork, attending meetings, giving speeches and deep down hoping for an assassin to slip past my security somehow, just to see if I still have what it takes, or better yet for my admirals to conspire against me so I’ll either have to flee from the empire I’ve built, or die gloriously, like Julius Caesar and his senators except everybody has laser swords
