Wang Teng Thomas, Xiaomi's product director, has written a post on Weibo indicating that a follow-up to the 2018 Black Shark Helo is on the way. The executive claimed to have seen this phone in the flesh, describing it as "too fast". However, no further details on this next-gen gaming device were discussed.
https://www.notebookcheck.net/Xiaomi-executive-confirms-existence-of-3rd-gen-Black-Shark-gaming-phone.403181.0.html