Robert Bowling said this about dedicated servers, and thats all thats really known about them.
@MavrAnger What more info did you need on dedi support for PC? Day 1 w/ server browser and public server files. Set up your own and control.
Max players - up to the server host/providor.
Quick private hosting - LAN? If that's what you mean, then yes, it's in.
Ranked/Unranked - Pretty sure all servers w/o mods will be ranked.
Linux - you play with that?
Server Updates - Up to the server providor.
Mod tools - has nothing to do with server details. But yes, they're talking about it.
Radiant - STILL nothing to do with server details.