A few things to note here:
1) Mercedes worked on the Wankel for a while in the 60's...
( one of it's prototypes appeared regularly in the series UFO)
2) John Deere built a number of Wankels in the 80's in the SCORE series of engines (Stratified Charge Omniverous Rotory Engine)
3) My worry about this new engine would be lubrication. I don't see how the Piston Bearings or Rings can be force lubricated in this configuration. In most conventional engines, pressurized oil is fed through the crank to the big end bearings. Some is forced out into the pan, but some goes through the connecting rod to the small end bearing. This then is forced out and sprays the cylindar walls. The Rings in his engine may have a direct spray from somewhere in the block, but those bearings might find themselves on too lean a diet.
Just a few thoughts.
Imagine the load on the starter as well. It would have to turn the lobes somehow, not the output shaft. Even then...
They never show it being started on the video, nor do they let it idle down. With extra stiff valve springs (I see they use 4 cams on their test engine) It must be a bear to turn over.