The elements that made New Vegas good were the team, the near infinite money they had, and how everyone seemed to enjoy the project. From interviews I've read with Josh Sawyer and Tess Treadwell, it seems like everything went as smooth as game production could have gone. They were never worried about deadlines or anything, despite the 18 month production time. They wanted to have more Legion territory, but otherwise the game is how they wanted it to be. So I don't know how those elements would get replicated.
Pentiment is really good though. Outer Worlds is...ok. I guess we'll see.