I suspect the answer would be highly unlikely if not already in there as adding it might need to clear/redo their G-Sync ultimate certification. However see Nvidia's newest game ready (not in studio yet) driver release notes, this was addressed by Nvidia.  Nvidia just added a custom setting to the Nvidia control panel similar to amd to address over saturation issues: "New Features and Other Changes NVIDIA Control Panel Added Color Accuracy Mode feature (Display > Adjust Desktop Color Settings page)" Link to full release notes: [URL]
Is there a possibility that an sRGB mode could be added via update sooner or later? I think many people also use this monitor to work, so it would be very convenient to have it, to avoid oversaturated colors.
AW3821DW, sRGB mode? #2