Sad that the new S3 will have less power than the old one. 
According to the linked article the new S3 will have around 210kw, which is a lot more than the old one which had 165kw (225hp) as stock. Even tuned the old S3 only gets to about 195kw.
However the new S3 will be heavier, especially over the nose with that heavy donk. So I reckon the old one will handle better round the twisties.
I'm a bit dubious about DSG in the RS3, I was under the impression that DSG couldn't handle high torque.
Cheers, Ed.