Great news, I especially love the feeling of racing in the rain and it definitely should give a little burst of adrenaline into the series. Night racing too is an experience of it's own and it'll definitely help make the amount of tracks feel larger than it is because the racing is so much different. Would loved to see dynamic ToD, but hopefully it'll still give more options for customization than GT6 does (meaning all tracks have night/rain). I have no doubt it's going to be stunning too, T10 can definitely produce one of the best visual of the console.
For me though, the wheel support could be the thing that decides whether to get the console or not. I would absolutely love to get F6 and Horizon 2 (as well as some of the other exclusives), but I might go with the G29 wheel which could lock me out of a wheel for the console, but we'll have to see. For now, pCARS, AC and GT6 are satisfying my racing needs, but I shall keep an eye on F6.