Bitfury and KnC aren't going to be selling to the public, and BitFury in particular isn't going to be selling 16NM at all for months at best (they just announced tape-out earlier this month, it takes MORE months sometimes a year+ to get working production hardware from that point).
There are 16nm miners out there now. It is just they are not available to the public. KNC taped out its 16nm chip in February and announced they had chips workng in June (Solar chip). This is presumably how KNC were able to add 10-15 Petahash to the network over the last 4 weeks.
Bitfury also have 16nm coming.
But neither company will sell to the general public.
Companies aim to make a profit so will not sell miners if it is more profitable to use the miners themselves, or only sell to related large scale farms.
So 16nm miners are out there, just don't expect the latest technology miners to be sold to the public.