Lens looks to be a f/2.8 16mm prime. Made by who is the question. Hass'y had that lens (Made by Sony) but dropped it and Sony took it up. Maybe with the DJI/Hass'y merger they got it back. The face looks like the Sony version buried deep in the hood in the above photo.
Having taken the back off the X5S, there may be enough room to the sides for the Super 35mm or APS-C sensor given it is not that much larger than the X5S M43 sensor. Maybe 20% to the side and 10% to the top of the current X5S sensor would do it.
The lens mount should be the interesting part, and just what lenses can be used on it without exceeding the gimbal weight limit. I don't think there's a very large selection of lightweight lenses in E-mounts out there, but we'll find out tomorrow. It certainly cannot carry a cinema-type T-stop video lens as they weigh a ton.
Having taken the back off the X5S, there may be enough room to the sides for the Super 35mm or APS-C sensor given it is not that much larger than the X5S M43 sensor. Maybe 20% to the side and 10% to the top of the current X5S sensor would do it.
The lens mount should be the interesting part, and just what lenses can be used on it without exceeding the gimbal weight limit. I don't think there's a very large selection of lightweight lenses in E-mounts out there, but we'll find out tomorrow. It certainly cannot carry a cinema-type T-stop video lens as they weigh a ton.