Had a cheeky test of this today (done my meeting so whatever) - not sure where private sessions have gone but looks like the overworld, you’re stuck with other players. Which sucks dick, as it looks like theres loads more to do.
but at least there seems to be a hell of a lot more actual stuff to do in there now. Missions, stunt races etc. Worth a test tonight.
WAIT! Found out you can do a private session with friends by starting a server via Single player.
WHich is retarded but least no pubbers ^^