A new leak points towards the DualShock 5 only being a minor revision of the DualShock 4. Sony has already confirmed that it will incorporate new triggers in the controller that it will release alongside its next console. However, the patent offers an insight into the other features that the DualShock 5 will also include, along with the ones that it will likely remove.
https://www.notebookcheck.net/DualShock-5-patent-design-may-disappoint-PlayStation-fans.443199.0.html