ASRock lists upcoming Z390 motherboards on their website.

ASRock Z390

Do you love leaks? ASRock has you covered.

Upcoming Z390 series have been confirmed by ASRock through their update software website. Sadly, no Fatal1ty models are on the list, but five Z390 motherboards have been confirmed so far:

Z390 Extreme4

Z390 Pro4

Z390 Taichi

Z390 Taichi Ultimate

Z390M Pro4

We know about at least five other models, such as Fatal1ty Gaming K4 and K6, Master series and SLI Xtreme.

Source: ASRock