Most of us are probably waiting for APS to release these with their new movement. Once that happens, the floodgates will open and lots of us will be buying as with the 26240, I’m sure.
I'm sure they're working as fast as possible. The 26240 release has been astronomically successful. I ordered back in December every steel model and am still waiting. That in mind, they seem to be having some bottlenecks in the production process for the SH4401 movement