Is there a plan for new tracks? Why can’t it be like Forza Horizons and all the different courses it included?
Some related reading:
http://www.ign.com/articles/2013/10/28/starting-from-scratch-building-forza-5s-new-car-roster
http://www.ign.com/articles/2013/11/07/turn-10-boss-explains-nurburgring-absence-from-forza-5
http://www.oxm.co.uk/65965/were-not-holding-cars-back-for-forza-5-dlc-says-turn-10-people-misunderstand-the-way-these-things-work/
http://www.shacknews.com/article/82173/interview-forza-motorsport-5-creative-director-defends-in-game-economy
http://forums.forza.net/turn10_postst1931_Do-wish-list-cars-tracks-ever-get-in.aspx