On official forums for the developer, Obsidian announced that The Outer Worlds would be getting story DLC next year. The exact quote was ” To all of those who voted for us in The Game Awards, you are all fantastic and we are so grateful for your support. The reception to The Outer Worlds has been unbelievable to see, and even just being nominated means a lot. However, the journey isn’t over yet as we are excited to announce that we will be expanding the story through DLC next year! Details will be made available at a later date.”
The Outer Worlds released October 25th, 2019. We will keep you posted when more news on the DLC drops.