It may be early, but a typically reliable leaker has outlined comparisons between Huawei's next flagship SoC and the Kirin 990. Likely arriving in next year's Mate 40 series, the leaker has hinted at the successor to the Kirin 810 too and in what devices it will feature.
https://www.notebookcheck.net/Huawei-Mate-40-Kirin-1020-to-be-almost-50-faster-than-its-predecessor-and-manufactured-on-a-5-nm-node.446996.0.html