It is Oxai,

There is a small access cover where the rudder servo sits, just forward of the stab adjustment screw. The engine must be the new YS 185, and the most important detail not clearly seen in the picture is the ventral T canalizer with anhedral.

He just flew it one day ago, and it's supposed to be very good, but not much details nor comparison to the Axiome+. It has an engine cowling on the bottom, not the ussual belly pan, so wing seems to be a two piece one.