Modders to the rescue! Some cut content is simply Fallout 3 content that was never removed from the GECK. Due to the age of Fallout: New Vegas, some mods from the Nexus are structured in a way that NMM can't use. New texture for the Sith Holocrons in Atris.
Fallout 4 – Cut Content Restored Fallout 4. NMC's Texture Pack is the best texture replacer out there, upscaling various textures up to 2K quality with a small performance hit.
I'm working on a video spotlighting his amazing work. New Vegas' vanilla release built on that, and the jsawyer mod is one that overhauls the game's challenge. Read a description of the individual bits and piece here.