Mojang Studios is introducing the "Locator Bar" in version 1.21.80.20 of Minecraft Preview, which replaces the traditional experience bar and helps players locate friends with colored dots and elevation indicators. The Locator Bar can be toggled off for fairness, and players can remain invisible by crouching or using certain items. Additionally, version 1.21.80.22 will allow players to create flat worlds with various presets, such as oceans or deserts. Upcoming updates include new Ghast variants, the ability to ride Ghasts, and a significant visual overhaul called "Vibrant Visuals."