SharePoint 2016 Preview is OUT

The preview is available for download. Bear in mind, this is a trial valid for 180 days and won't allow you to change to RTM later on.

https://blogs.office.com/2015/08/24/announcing-availability-of-sharepoint-server-2016-it-preview-and-cloud-hybrid-search

This link explains in brief the new features that product has to offer. Few buzz words, "Cloud First", "Enhanced User Experience", "Hybrid Search", "Device Friendly", "Less Deployment & Configuration Overheads", "Zero Downtime", "10GB File Support", "App Launcher" etc. etc. 

After downloading the trial, you need to run first prerequisiteinstaller.exe and then setup.exe. 

After installation, the configuration wizard will start and prompt you for database, farm account and then this new screen that will help to minimize deployment overheads in multi server farm environments.  

I used Single Server Farm option.

After configuration wizard, the central administration will prompt for Customer Improvement Program and Farm Configuration. 

Few more screens including App Launcher option. 

Hope this helps!