Fallout had really easy console commands. From this, it was easy to get many things and spawn ai's. It was also helpful when getting out of glitched areas.
Hard to say. It is a new engine, so they may be different. But they may not have changed the actual commands since they may not have wanted to learn new ones, either.
I never used the console for cheating. I always ended up using it to fix/get me out of glitches. I can't see them removing it. It'll likely be there in some form or another.