At a price point, I think Tapo is currently one of the best cameras to replace Wyze (certain models also have Starlight sensor for lowlight conditions). I’ll go with Tapo instead of Kasa because it supports RTSP / ONVIF (for wired cameras only) and they tend to have more AI detection options.
According to FCC report, Roku is cooking up 2 new camera with a new manufacturer, Leedarson Lighting (known for manufacturer of IoT devices for IKEA). The form factor is just like Wyze’s V3 and V4. From the pictures and WLAN report, it should be 2.4GHz band 802.11ax (Wi-Fi 6) capable. It looks like it uses ANKYA AK39Av100 SoC. No clue if it has Starlight sensor or what specific Wi-FI radio.