Huawei is rumored to stick with curved displays for the Mate 40 series
The Huawei Mate 30 Pro came equipped with something called Horizon Display: a front panel with an extremely marked (88-degree) curve to either long edge. Now, the OEM is rumored to persist with this feature into the next iteration of the phablet's series.
Evidence of this is supplied by a tip from @RODENT950 hinting at just such a screen - also known as a waterfall display - for the Mate 40 Pro (also possibly to be marketed as the Mate40 Pro).
Furthermore, a (relatively less well-known) Weibo leaker called @8090 Digital Life has shared images of screen protectors that apparently fit its generation's base model, something that could not have been said of the Mate 30.
In this case, the downward curve may be less pronouced, but definitely exists, cutting all traces of bezel to the bone as it does so. Interestingly, the same accessory contains no cut-outs for front-facing sensors at all. On the other hand, components such as punch-hole selfie cameras could also simply function through the clear glass in any case.