If there's a problem which will stop this from becoming reality, it's the people playing it. People who play games are the number 1 reason why games are bad. Stuff like raising an army or leading a nation will never ever happen, when 99% of the people want to do their own thing or be the leader themselves.
Personally though, I don't see that as a bad thing. I love the lone wolf playing style, and perhaps this would be a great venue to thrive as such. Create some wealth by hunting, foraging and so on, and then move on to stealing other people's shit, and eventually assassinating people. Sounds like fun to me.
Remains to be seen, but I for one am a bit skeptical.