there is an "arcade" mode which is like rallycross with about 6 cars on the stage at once. it will probably be ignored.
but, yes, of course, there is the proper stages. you can go through it on your own. a new feature will be that there will be broken down cars at the side of the road and you pass them out on your way along the stage and there will also be falling rocks, forest fires and floods.
also dogs and kangaroos can interupt the stages.
s1600 cars, wrc cars, concept cars and extreme cars will all be included but the gpn cars will be gone and will be replaced by historic cars (including the Quattro S1, Renault 5 Maxi Turbo, 205 T16, Delta S4 and Lancia 037).
the stages still seem quite short, and some a little too short. there may not be many either. probably 6 max per rally.
the handling has been vastly inproved and so has the co-driver. he also sometimes says rather amusing comments and his tone changes if you get airborne..etc.
if you have any more questions, don't hesitate to ask