I was reading and came across something of interest atleast to me.
http://blog.us.playstation.com/2015/...d-new-details/
“The number of subscriptions doesn’t necessarily affect the development of the game, since the number of people who can enter a certain zone or server is limited,” says Yoshida. “There may be opportunities to increase the number of servers to accommodate more players, but the content itself isn’t affected by the number of people playing.”