In this day of electrification, I don't see anyone investing the capital required to produce a rotary economically. The world has been machining round holes and cylinders for 120 years and have become quite proficient at it. Mazda held on as long as they could, until emission abatement cost more than a competitive 4-stroke.
With today's materials, durability is not an issue. The rotary's weakness is its surface to volume ratio, resulting in significant flame quench, causing high hydro carbons and reduced fuel efficiency.
I believe if OMC would have continued the rotary in specific application, they may still be in business. I believe the rotary would have been competitive over the complexity, size and cost of the Ficht and their latest air injection system.
Imagine a 250HP twin rotary IO w/o a dog house. or a side wider 4 rotor 500HP IO also w/o a dog house. Both with 1/2 the weight of a comparable 4-stroke.