all of you guys who are saying that they should make all the provinces in 1 game need to stop. ya that would be amazing, if they could do it. it would take way longer than 2-4 years to make it. they wouldnt be able to make it on the newest system because they would start and new systems would come out while they were making it. they couldnt because the disks dont have enough room, (they barely have enough room for the games right now, and thats just one province.) it wouldnt have nearly as much story. bethesda would make way less money because its all in one game. and there wouldnt be anymore after that because they did everything and went everywhere already. the games are already some of the biggest games and longest. so it would be very difficult to make them 10x bigger.
bethesda only goes to one province at a time because they want you to really explore, learn everything and read every book well maybe not every book. they want you to see how theres story everywhere, even in the caves theres story. (you see a couple of dead bodies loot them find a journal or a piece of paper explaining what had happened.) they want you to fully enjoy the game and have as much free will as possible.