not yet announced, but sure to be coming our way Dishonored 3 will hopefully learn from Dishonored 2's mistakes and will focus more heavily on PC optimisation. Regardless it will likely require a top spec rig to work.
PC System Analysis For Dishonored III Requirements
Dishonored III requires a Radeon RX 480 8GB graphics card with a Core i7-4770 4-Core 3.4GHz or FX-8350 processor to reach the recommended specs, achieving high graphics setting on 1080p. Minimum RAM requirements are 8 GB system memory. Make sure your GPU can run DirectX 11 or Dishonored III won’t run. In short you need a 3 year old PC for best Dishonored III performance.