The most recent version of iOS 27 will not have any significant changes for Liquid Glass Design, but there may be new settings system-wide for adjusting how the interface looks. In iOS 26.1, you can select a Tinted or Clear option for your Liquid Glass design, while iOS 26.2 added a slider to adjust the Liquid Glass Opacity manually.
Apple initially was developing a Liquid Glass slider system-wide for iOS 26, but encountered challenges in engineering when trying to branch it out across all systems. The company is back to working on a design to get the slider working for iOS 27.
Beta for iOS 27 is anticipated to start in June with a release date in September. iOS 27 is reportedly going to be similar to Mac OS X Snow Leopard, where they prioritize providing us with improvements and bug fixes.
