Great question; it's hotly awaited by a lot of the community. Rough (and very unofficial) road-map is looking like: 1. 0.6 (June 2021): First-class ECS-integrated UI solution is architected and released. Asset management, animation and scenes are improved. Plugin architecture and data-driven workflows get a closer look. 2. 0.7 (August 2021): Editor MVP launches as a separate application built in Bevy, focusing on supplementing code-first Bevy workflows with things like property inspectors, scene management, system visualization and so on.

Once that's launched, I expect that we'll be working on making Bevy more usable through the editor for low-code users, although the goal is to ensure that pure-code (and pure Rust) Bevy games have feature parity with anything you can do in the editor.