The respected tipster Ice Universe has tweeted a poster showing the top half of the finished Huawei Mate 30 product. This image has Chinese-language taglines and Leica branding, and shows that the phone does indeed have the long thin notch shown in earlier leaks. Its round camera is surrounded by a generous border.
https://www.notebookcheck.net/Huawei-Mate-30-real-life-design-is-captured-in-new-leaked-poster.433336.0.html
Love to watch how crowds get excited by so called pre-premiere "leaks" about upcoming products, where in reality all info gets to the surface in well controlled way...