91Mobiles has published a render that, as it claims, shows the upcoming first successor to the Huawei Nova 5 series. According to this image, it will have a selfie camera that looks the same as that of the Samsung Galaxy S10+, and is set into one upper corner of the display. The blog also now claims that this phone will have a 5G variant.
This recent post shows that this "Nova 6" will come in a sort of electric blue. However, a subsequent render of the same phone suggests that Huawei will also offer black and purple colorways for the putative phone. AndroidHeadlines, who posted this leak, also points out that the dates on the displays in this image all read 12/5. Therefore, it is possible the device will launch on December 5, 2019.
As the Nova 4 saw its own debut on the same month of 2018, this may be plausible (even though the 5 had its release in June 2019). Its renders also suggest at least 3 rear cameras; however, besides references to a rumor that it will support 40-watt charging, there are no details on the rest of the prospective 6's specs.