The open tracks should have been done years ago, always wanted them, never actually thought of there being an issue with all the enviroment being built/displayed.
Not fussed about new race track layouts, i just think it'll be great fun for Cops & Robbers, its always been pretty limited in its options in the past, all but KY would make for excelent C&R venues.
SO & AS will have tons of routes, BL & FE will have offroad sections which should be fun, KY's overlap of layouts will lead to sections with no route option for 2min stretches, whereas the others should have lots of frequent route changes, hence more open gameplay.
Could get pretty chaotic, hopefully some servers will pop up like Cruise ones offering C&R mode, but i always found C&R fun but sadly too restricted to make it more enjoyable, but one of those fun past times which LFS was open to, which you just dont get in any other racing sim... the freedom to do as you please.