The announcement date for the Galaxy S23 series is already set for February 1st, so we expect the leak intensity to be even higher. Not much is said about the hardware, but we do know a lot about the relative sizes.

In addition, the design of all three bodies has been confirmed again. The body of the S23 Ultra appears to be unchanged, but its smaller sibling does not have a camera island and adopts a rear hemipanel that matches the top dog with just the camera lens sticking out.
Still, there are distinct differences between the S23/23+ and the S23 Ultra. The latter has sharp corners and an overall blocky design, while the other two are oval and mostly flat-sided.