This was announced and was always planned as enterprise event. I don't know what non-server announcements did you expect from them here? This happens pretty much every time when there's an enterprise event - some people just don't get it.Except nothing that will carry over to Ryzen has been announced. Because I highly doubt we'll get 8 channel RAM on consumer parts. It's AMD's show, I'm not faulting them. I was just saying, I had other expectations.
Edit: I also don't see anything about Zen2 availability in the server space, so good luck with that "Q1 or Q2 2019" prediction.
Mainstream stuff will be discussed at CES keynote at the beginning of January next year. Judging by the data we have now it looks like we might get 16c/32t mainstream part on AM4. That is two chiplets and a controller chip between them. Coupled with improved IPC and clockspeeds things looks pretty good imo.