IO Interactive has said it has plans to expand the Hitman reboots into a 'World of Assassination' trilogy. While Hitman 3 has yet to be officially confirmed, it stands to reason it's on the way eventually.
Hitman 3 runs on the Glacier game engine. You need a Core i7-4790 4-Core 3.6GHz or Ryzen R5 1600 processor coupled with a GeForce GTX 1070 to run Hitman 3 system requirements at recommended. You can expect to get around 60FPS at 1080p screen res on high graphics settings with this hardware. Hitman 3 needs a Radeon HD 7870 graphics card to play on low settings, with a Core i5-2500K 3.3GHz or Phenom II X4 940 processor to reach the minimum specs, achieving 30FPS on 1080p monitor res. System memory for min is 8 GB. Make sure your GPU can run DirectX 11 or Hitman 3 won’t run. To summarise, Hitman 3 needs around a 3 year old PC to play at recommended settings.