2017 15" Macbook Pro RP560 + GTX1080@32Gbps-TB3 (Aorus Gaming Box) + Win10 [harshw]^
I got an Aorus 1080 Gaming Box (Amazon had them for $699) . Getting it working with Windows 10 & Bootcamp on my MBP 2017 was painless. I simply connected the AGB's TB3 input to the top-left TB3 port on the MBP and DP and HDMI outputs of the AGB to my monitors. I also kept my Kensington TB3 dock connected to the top-right TB3 input on the Mac.
Win10 & BootCamp: Booted into Windows, downloaded the NVIDIA driver and rebooted again - and was ready to go. I'm using the AGB to play Prey and Wolfenstein II: The New Colossus.
I get the same results on 3D Mark for Timespy @2560 x 1440 as others have gotten: 64xx ~ 67xx.