Earlier in the year I found out that GRID 2 was to be shown at E3 this year along with PGR5 from the attached video.
I have just realized that the E3 event is in a couple of weeks time and hopefully we find out the official release date.
I personally believe the current Forza series is rubbish. GRID 1 was awesome and I feel its still the best racing game to have come out for the 360 which was 4 years ago. I can't wait for this to come out!