Well that would be the most bizarre business strategy of AMD, spend a fortune of their debt developing Zen/APUs and then just give up before launch because they will not gain 20% market shareEven if Zen utterly stomps Intel in every segment theyd still be lucky to increase market share into the upper 20% range. Half a loaf is better than no loaf
Intel iGPUs have never been premium parts and lack on the "perf" portion of per/watt. At the very least these will be more power efficient than Intel CPU + discrete GPU (in example the Macs with the RX460)
I think the bigger question is who and which division is driving this deal in AMD with Intel if it is happening.
Cheers