Intel could launch new mobile SKUs during CES 2019 using Cannon Lake, now marketed as 9th gen, perhaps just 4 and 2 cores U series 15W parts. I remember a news of Intel preparing to launch U series 9th gen parts soon. Possibly 9th gen will use both Coffee Lake (for 6 and 8 cores) and Cannon Lake (for 4 and 2 cores). By summer Intel could add more power hungry 4 cores, like 28, 35 and 45W including some desktop parts.
By holiday 2019 or CES 2020 Intel would launch 10th gen CPUs, now with all of them being Ice Lake parts. Tiger Lake (Ice Lake sucessor) will be cancelled since it is just an optimization. Sapphire Rapids would launch in holiday 2020 or CES 2021 using 7 nm and possibly new arch.
All these is best case scenario of course, just to imagine the idea of 7 nm being launched by end 2020/2021 without ditching 10 nm, just shortening.
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