Xiaomi is always quick on the ball with these things and Mr. Lin Bin, the co-founder and vice-chairman of Xiaomi Group, has announced the Xiaomi Mi 10 will have Snapdragon 865 powering the phone. The current launch date is an ambiguous Q1, 2020, probably after MWC in February though.
Following this announcement, Lu Weibing from Redmi also announced that the Redmi K30 Smartphone will arrive with Snapdragon 765G chipset, that supports SA / NSA 5G dual-mode with peak download speed up to 3.7Gbps.
The Redmi K30 is being launched in China on the 10th of December, along with the new 5G integrated SoC, the phone will feature a quad-camera setup on the back and a dual punch-hole arrangement on the front. It is expected that there will be a Pro model launched at a later date and this will likely use the Qualcomm Snapdragon 865.
Both phones should launch with MIUI 11 based on Android 10 out of the box.
Not much is known about the Qualcomm Snapdragon 865 yet, all Qualcomm has revealed is that it does not have an integrated 5G modem, but instead will use the X55 modem.
The Snapdragon 765G does have an integrated 5G modem, and this is the X52 which is capable of 3.7 Gbps download speeds with support for mmWave, Sub 6 GHz, Dynamic Spectrum Sharing, NSA, SA, and carrier aggregation. It is expected that the Snapdragon 765G will continue to use the custom Arm Coretex A76 cores for its performance cores, rather than the new A77.