Speaking of the new secret Arturia Peanut Butter product underway.
Given that Arturia have reportedly done their own ( channel aftertouch ) keybed, or had a new design keybed done for their new Astrolab product, it is believable, that this poly-aftertouch keybed is their own new technology as well. It certainly looks new from the video.
These two keybeds could even have been done off the same molds ( the expensive part of making a keybed ) with different sensing mechanisms used.