I think you misunderstand what the subsides were for. The problem on the cost side was that the motherboards themselves, not really the SoC, were just too expensive. Remember that these SoC vendors don't just sell chips, but they do the motherboard design for pretty much all but the most premium customers.
This is why Intel was able to do a BYT-CR which cut the subsidies in half.
Intel could have had cost-appropriate products at 22nm if its platform engineering product definition teams did their jobs correctly, AFAICT.
As far as foundry 14/16nm competition, don't be so sure of that. There are ARM vendors who successfully used 3rd party foundries to put out quite cheap & capable products. TSMC is also doing a cost-optimized 16nm FFC that should be extremely good for getting FinFETs on the cheap.
I agree, AMD is to be closely watched. Of course, no analyst is going to ask BK about what he thinks about AMD's potential resurgence and even if they bothered, he'd probably say something like "We're confident we have a lead, trust us, 50 year history Moore's Law...something..."
The threat to INTC that you pointed out may indeed materialize with Zen.
Looks like the rumor of a 32C/64T chip was true. We know the consumer part goes up to 8C/16T, which means that the dies on the Zen server chip are 16C/32T. Two of them stuck on a package means 32C/64T per chip.
SKL-EP/EX will top out at 28 cores/56 threads, though that will be a single monolithic die rather than an MCM.