The next gen Kirin 980 is being manufactured at TSMC's foundries and uses the 7 nm process. Huawei will also include a new AI chip from Cambricon and an improved GPU, so the upcoming Kirin 980 will surely battle it out with Samsung's Exynos 9820 and Apple's A12 SoCs. The latest HiSilicon chip is scheduled to be launched with the Mate 20 flagships later this year.
https://www.notebookcheck.net/Huawei-s-Kirin-980-SoC-confirmed-to-get-7-nm-treatment-and-new-AI-co-processor.302986.0.html