The new chisels are Kakuuchi Oiirenomi vs. the more common Mentori Oiirenomi. The biggest difference is the hard steel extends up the side of chisel and there is no bevel on the sides much like a western firmer chisel.
A photo of the two bevels, the Kakuuchi chisel on the right has not been sharpened so it is a little duller looking.
In this photo and the next you can see the bevel of the Mentori vs. no bevel on the Kakuuchi chisel.
The two chisels from the side.
I expect it will take a couple of weeks to prep and sharpen the new chisels, no need to rush things 😇.