If that lens comes in at a mid 4 figure price, I’ll buy it for wildlife. Imagine the equivalent of 300-1000mm handheld with the sync IS of the top Olympus bodies, and up to 2000mm with their teleconverters. I was theoretically sceptical that this made any sense until I saw Robin Wong’s videos on YT doing that with the current 100-400 zoom, which the halo lens should eclipse. He shows some amazing IQ at extreme ranges.
Feel free to call me a fan boy, and chime in about m4/3 noise and dynamic range and useable ISO and zooms versus primes. All factored in. I’m a hobbyist not a pro, and I’ll be out hiking longer and higher than I could with a D6 and a scuba tank sized telephoto!