Neumann film posted that video teaser. And they say they are shooting a “Super Secret Project”. If you look closer some frames of the image show the GH5(s?) with the red ring on the drive wheel and a red record button (see screen grab at very bottom of this post).
I hope to get some specs the upcoming days! Meantime some more specs speculation can be read at CameraJabber.
UPDATE: Our reader Wiki spotted this: He used the chrome plugin “VidIQ” to find the youtube video tags and see what’s on that list :)
And special thanks to the folks at Neumann film for this great teaser! Please post some more stuff :)