I still doubt we'll see anything. I remember before one other event this year there was a scene from the cyberpunk trailer in the advertisements, but nothing from cyberpunk in the actual event. Can't remember which event it was this summer, but yeah ...
I agree, and as painful as it is to wait with nothing new to see i would prefer if they didn't show anything else until they also have a release date. We already got a huge demo we don't really need to see anything else for now, it will just make the waiting even harder without a release date.
Monthy Python references aside, I'm glad Marcin confirmed they won't show anything there. It's appreciated, and helps to keep speculation in check.
This just reinforces my belief that we'll see something a couple months before E3, with some big announcement there (not necessarily release date, but possibly). I don't think they would go another 12 months without giving us anything.