PetaPixel thoughts on the new Sony RX1rIII

Their thoughts in short:

The upgrades—better autofocus, battery, creative profiles, and high-res sensor—are welcome but incremental.
Downsides include the high price (over $5,000 before accessories), no lens redesign to match the higher resolution, no articulating screen, no image stabilization, and a dated EVF.
The camera remains extremely compact and pocketable, which sets it apart from rivals like the Leica Q3 or Fujifilm GFX100R.
Sony seems to have revived the line to tap into the growing market for premium, soulful compacts like the Q3 and X100VI.
Reviewers question whether the dated lens can resolve well enough for the 61MP sensor and whether it competes on value vs. an a7CR with a 35mm lens.