Looking at the NoClip documentary for Betheseda, the attitude was 'Working on a Fallout game is great, you can do whatever you want!" so they see it as a chance to come up with crazy wacky stuff like having Salem Church be filled with magic users (Which was only removed because someone deleted the Skyrim magic assets from the engine)
New Vegas will be a thorn in their side for years to come because it shows they could manage a fine crafted world with a decent plot, if they only fucking tried.
CB2077 looks like open world Deus Ex, which is good. I wonder how the other classes would have managed the situation shown in the trailer.