And funniest part: Pike, from PikerAlpha has said in December 2016(!), that next generation Mac Mini will be bigger than current one. And more expensive . He, in the same post on his blog, said that next gen. iPhone will have wireless charging(and was pretty darn correct on this matter).
The whole point of the Mac Mini was an entry level Mac, regardless of power, i.e its Price point is what makes a mini; mini. Not its size.
Sadly we wont be seeing anything more from Pike, I wish him well. But the last bit he also mention all the CPUID points to Coffeelake, not Kabylake for iMac and Mac mini.