Finally, it was presented today in Berlin... https://www.gsmarena.com/the_zte_axon_9_pro_runs_stock_android_boasts_stereo_speakers_and_a_large_batery-news-33019.php
All the specs you would expect from a 2018 flagship phone, including water resistance. Drawbacks? In my opinion: no 3.5mm audio jack, $745 usd price and it won't be available in the US market.
I think the Asus Zenfone 5Z it's a much better value for the money, even with a smaller battery and no waterproofing.