This is the first image of the upcoming Leica S3 medium format camera, leaked at the Nokishita-Camera.  This new camera is expected to be announced ahead of Photokina 2018.

Translated from Leica China:

The outstanding performance of the Leica S3 system is a well-thought-out result. All of its individual components are precisely matched to achieve a harmonious interaction, creating a unique Leica feel. The Leica S3 worked closely with professional photographers during development, professionally meeting their specific needs with its superior image quality and flexibility, as well as simple operation and robustness.

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