Very nice achievement.
You're going to be in for a treat!
Europe updated behind my back, I had already moved on to Africa when the UK update hit. I did go back to explore London, Paris and Amsterdam (added the pictures at the end of the legs visiting them originally so you can compare the difference) but haven't checked out the new landmarks and updated ground textures yet. A bush flight through the nordic countries is at the top of my list to do next.
Germany already had some great areas, but more is always welcome. Berlin looks great already.
Although checkpoint Charlie is just a bump in the road (too small to get picked up in detail)