The Outer Worlds was initially set to release in March, however due to issues regarding coronavirus, it was delayed indefinitely. Well now, indefinite has turned into June 5th.

And there was also some more light shed on the day one patch:

The retail version The Outer Worlds comes on a physical cartridge, and it will be accompanied by a day one patch that could be up to 6GB. This patch will optimize gameplay, provide additional hi-res textures, and include other fixes to provide the employees of Halcyon with the best gameplay experience. Please ensure you have planned accordingly and have available space necessary for the patch.