In theory, in praktise it went downhill fast with, apart from AOTS, no multiGPU and even not a word about it, Remedy even set it's to much work:
http://www.overclock.net/t/1597486/g3d-quantum-break-will-not-support-multi-gpus#post_25075720
DX12 GOW, no multi GPU
DX12 Tombraider, no multi GPU...