Maybe they could implement some kind of cheats to allow users to fool around like Gta does, But if you have cheats active you cannot unlock achievements. If any, What you like to see added?

Spawn a tank.
but more seriously, i would have to say... just normal console codes. So i can spawn infinite arrows!

I think keeping some of the bugs glitches are cool like the scroll dupe glitch in oblivion and the restoration glitch in skyrim, but ultimately I would want dlc but as a ps3 player I won't buy it due to the history of the fallout dlc