I do not know if you live in the near of Silkeborg but if you have the chance to visit Silkeborg and take a look on the last stage between Århus and Herning, I am sure you will be amazed. According to the last edition of " Motor" there should be an exit which is very unseen, and beside of that, a part of the motorway is under water, just for protection of the environment. I am writing this because maybe you could have it in mind, when you are building assets for the game.
With Regards Henry
PS I know that because of scale the new stage/Exit proberly not will fit in, but reality can be used as an inspiration for some where else.
For people outside Denmark : MOTOR is a magazin for members of FDM , a Danish organisation for owners of car