We should enjoy the cameras we have, look forward to updating features we need or want, and be polite to fellow readers and commenters.
ok now, that is crazy talk!
I would be 100% happy with the posted specs if they can clean up the Mid ISO noise. My copy of the 7D is ok at ISO 400, turns pretty bad at 800 and totally un-usable at 1600 on up. If they can make a clean ISO 800 and a usable 1600 I would be very happy.
I know that tollerance of noise is different person to person so to compare I guess I can say that I feel that the noise on the 5D3 is clean at 3200 usable at 6400 and too much for my taste above that.
All this being said if the sensor's noise does not improve I do not see any use for a 24mm f2.8 for crop-only cameras. For indoor photos f2.8 is not fast enough to go without a flash unless you are at 1600-3200 and if you are going to put a flash on the camera all of the size advantage is gone. you may as well stick with the kit 18-55.