Microsoft's rodmap to D365Human resources - 2020 release wave 2 plan. The post describes all the features that will be released in this cycle.
The database audit feature is used to meet the compliance and security of the regulated processes. This exists from long time in Dynamics AX and then in D365FO. Now its released in D365HR too.
Workspace is like a dashboard that will have a logical group of tasks that make up the work of a target persona or a role.
Record why the adjustment transactions has been made for a particular leave plan and for a particular worker in D365HR
Functionality aside, Microsoft is adding more features to improve user experience in D365 Human Resources. These cross-app features are also available in D365 Finance & operations. Saved views, Full page apps, Optimised "is one of" filtering experience, Recommended fields, Sticky default actions in grids, Attachment recovery
Using word templates functionality, HR team can generate some basic documents/letters by using entities and with some manual intervention.