I must say that it would be great to see people wandering around the roads so you don't feel so lonely. However, for the cities, I think you guys must think that this game is an emulation of the celtic comunities. It's true that there were celtic cities, or viking cities if you prefer (actually, the vikings were a celtic tribe), that had 40.000 habitants, but that wasn't the rule. Most of them were small comunities. I think that Solitude or Windhelm could be a little more crowded for they're the most important cities, but the rest of them are currently alright.