Buddy, in the server market Ryzen will hit a home run for a stronger bang for the buck than even the regular desktop market. That was one of the biggest targets with Ryzen. They decided to hit the desktop and hedt first. Takes more time, testing, and validation for the server environment. It will be here around the latter part of the summer probably. I wouldn't be surprised if there is an even higher hedt target based on 16/32 to hit harder on the Intel 12c based hpc market in the future from AMD.
I'm sure this will happen sometime in the future. They've left the R9 name free. It's Ryzen 3, Ryzen 5, Ryzen 7. What about Ryzen 9? ATI used that naming scheme (R3 R5 R7 R9), now having moved to R10 (RX) but AMD doesn't for their CPUs? It doesn't compute. (I know, Ryzen 3 vs i3, Ryzen 5 vs i5, Ryzen 7 vs i7, but still. It's a possibility.)
AM4 has the same package size as AM3.. which is 40*40mm.. which amounts to 1600mm^2. You can physically fit two Ryzen dies (193mm^2 each) in there without much issue. The dies could communicate via their GMI links as they do in Naples.
Clockspeeds will obviously take a hit as to fit in, say a 95-125-140w TDP slot.. but then you could have an unlocked 16 core 32 thread monster in a single socket. Such a product could be possible now, or in the future with refined dies that consume less or clock higher.
But then you'd require a motherboard with wiring for the other two memory channels... hmm... that complicates things. It wouldn't be AM4 anymore, unless some pins could be reused to accomodate another two memory channels in some special motherboards. Who knows. I wouldn't mind a new socket if such a monster is available at some point for the desktop market. Their own HEDT.
Or they could be reserving Ryzen 9 for Zen+ next year...