This just out by the Windows Server team:
Windows Server 2019 is now available for Preview!

With this release of the latest server OS, Microsoft will try and focus on the following items:

• Hybrid Cloud Scenarios
• Security
• Application Platform
• Hyper-converged Infrastructure (HCI)

General availability is expected for the second half of calendar year 2018.

Read all about it on Microsoft’s release post here!

Update

Installed the VHDX and tried the ISO file, but nothing really spectacular so far.
Did notice the GUI install option has been completely removed, so I guess some of my colleagues will be running Windows Server 2016 quite some time 😉

Once I have more time to play with this, I’ll be sure to create another post with all the goodies 🙂