The Dynamics 365 2020 Release Wave 1 Preview is now available in early access to activate in your orgs. The roadmap from Microsoft looks like below:
You can read about some of the features in the link here:
And access the PDF on the release here:
To install the release, which you may want to test out on a trial org, head to the Power Platform Admin Center at https://admin.powerplatform.microsoft.com/environments and select your org:
Click on Manage: