WordPress 5.4 preview: whats in it - get an overview ..
cf https://make.wordpress.org/core/5-4/
WordPress 5.4 will be the first major release of 2020 and aims create a block for navigation menus and update Gutenberg to the latest release version as we continue to focus in 2020 on full site editing via Gutenberg. Matt Mullenweg is the Release Lead, Francesca Marano is the Release Coordinator, David Baumwald is the Triage PM, Tammie Lister is the Design Lead, Sergey Biryukov is the Core Tech Lead, Mark Uraine is the Editor Design Lead, Jorge Costa is the Editor Tech Lead, and JB Audras is the Documentation Lead. All release decisions will ultimately be theirs to make and communicate while gathering input from the community. There will NOT be a new bundled theme included in 5.4.
Release Schedule
cf https://make.wordpress.org/core/5-4/