The news of Quantum Break pre-order and pre-downloads for Xbox One include word on plans for a Windows 10 version of Remedy's game/live action show mashup, saying Xbox One customers who preorder this will get the Windows 10 version for free. Naturally some are quite upset with this, since people playing a game on another platform will diminish their own experience, and MCV recaps the typically reasonable discourse on Twitter inspired by this displeasure. Back to the Windows 10 plans for the game, this page has details on how that preorder bonus can be redeemed, and word that both systems can share saved games, but there's no support for cross-platform play. They also offer PC systems specs:

Minimum Requirements:
OS: Windows 10 (64-bit)
DirectX: DirectX 12
CPU: Intel Core 15-4460, 2.70GHz or AMD FX-6300
GPU: NVIDIA GeForce GTX 760 or AMD Radeon R7 260x
VRAM: 2 GB
RAM: 8 GB
HDD: 55 GB available space

Recommended Specs:
OS: Windows 10 (64-bit)
DirectX: DirectX 12
CPU: Intel Core 17-4790, 4GHz or AMD equivalent
GPU: NVIDIA GeForce GTX 980ti or AMD Radeon R9 Fury X
VRAM: 6 GB
RAM: 16 GB
HDD: 55 GB available space