Intel's iGPUs don't seem very at risk because the market for low-power GPUs isn't very profitable to begin with. As long as Nvidia is able to sell basically any chip they want, why waste engineering hours and fab time on low-margin chips? The GT 1030 (Pascal) never got a successor, so that line is as good as dead.
Even before the Pascal GTs, most of the GT 7xx cards, which you would assume were Maxwell or Kepler from the numbering, were rebadged Fermi cards (4xx and 5xx)! That generation was just a dumping ground for all the old chips they had laying about, and given the prominence of halfway decent iGPUs by that point, I can't say I blame them for investing so little in the lineup.
That said, the dGPUs are definitely somewhat at risk, but I think the risk is only slightly elevated by this investment, given that it isn't exactly a cash cow and Intel has been doing all sorts of cost-cutting lately.