Great news: The K820S 4K PTZ Camera is released, packed with outstanding features.

Key Features:
4K UHD (3840x2160 resolution, compatible with 1080P, 720P)
20x Optical Zoom (60° max field angle)
12G-SDI (supports 2160P60 YUV422 10BIT video output, enabling 4K long-distance transmission with a single cable) 
AI Auto Tracking (automatically tracks human subjects in education, conferences, and live broadcasts) 

NDI  included

https://www.amazon.com/FoMaKo-12G-SDI-Auto-Tracking-Education-Conference/dp/B0FDQSBZ8P/