I'm hopefully getting the PS Vita, and it's been announced that it'll be available on that, so thats what I'll be getting as I don't have a current-gen console. Codemasters have said the game has undergone quite a thorough overhaul. Apparently they had updated the roster within 3 weeks of the season starting, so most of the work has gone elsewhere. The engineer is now supposed to give you much more useful information, the career mode is supposed to be much more immersive, with things like Parc Ferme, etc included. (By that, I don't know whether you actually get to drive in after a race/session and do the whole celebration thing or not, or whether its a cut scene, but it's there.
The new weather system looks good, they've added clouds which are supposed to make predicting rain from the seat much more realistic. You'll actually see the sky darken, and get cloudier, and then sometimes get thunderstorms, and sometimes it'll only be a little rain, which should be interesting.
The cars are meant to handle more realistically, so that they don't spin off on curbs,etc, and set-up is more important. The safety car will be interesting, if it is used, I'd hope they have crashes between AI drivers which sometimes need safety car, but not always, and maybe red flags would be good too? Overall I'm really looking forward to it.
Aside from this, shouldn't this be merged with the F1 Gaming Thread?