In my opinion there should be at least two or three Route-Addons for TSW 2 with London Underground because there are a lot of routes with great potential and I think that DTG showed with Bakerloo Line that it can turn out very beautiful. My suggestions for a next Route-Addon is the Jubilee Line because it is very diverse in case of stations. There are very modern ones but also very traditional ones. The route is also 22.5 miles long and has 27 stations (13 underground) which is slightly longer than Bakerloo line. All in all I would love to see DTG focus more on London Underground lines because there are plenty more Lines to implement into the game and in game I miss metro lines.