From GameWatcher: “The Outer Worlds is Obsidian’s next RPG, and it’s pretty much a given that the expectations are atmospherically high at this point. According to a recent interview, stifling them in some regards might be necessary, however.
According to Obsidian, players will not have the option to romance companions in The Outer Worlds, though they will be able to take more than one of them along for the ride at the same time.”
Source: N4G PC The Outer Worlds' Romance Options Are Going to be Limited