Pretty sure I'm the first person outside of China who has the new Kinefinity TERRA 4k. I've been a bit of a ghost on this forum since going all-in on the Kine pre-order, but here's an unboxing video by way of saying hello again:
That's PR BS.
Official sensor image from BMD:
Terra 4K sensor image:
IMX294CJK sensor image:
In the above three sensor images, every single pin aligns perfectly and they are exactly the same size. BMD uses a slightly different active area (extra pixels used for black shading).