If Bethesda makes another Fallout game it needs to be a more traditional RPG, hence more like the original Fallout game. NO FIRST PERSON VIEW it needs to be Top-down third person view, optional turned based fights, etc.
I enjoyed Fallout 3 and just finished Fallout New Vegas, New Vegas is the better game in my opinion and it actually felt more like a Fallout game. Obsidean did a good job with New Vegas no Bethesda just needs to let them make a real Fallout game. As we all know a lot of people who work there worked on the originals so they know what they are doing.