Huawei will allegedly introduce its next-gen flagship mobile processor at an event in Berlin during September 2019. This would coincide with 2019's IFA event. In other news from this OEM, it has also presented its new SoC for AI, the Ascend 910.
https://www.notebookcheck.net/Huawei-now-slated-to-unveil-the-Kirin-990-SoC-at-IFA-2019.431818.0.html