Microsoft has already released a bunch of preview builds for the next major Windows 10 update (codenamed Redstone 3) to Windows Insider Program members. They are now actively working on adding new features as well as those features which were postponed from previous releases. This includes the Project Neon system-wide redesign and the MyPeople bar. However it is unclear at this stage when Microsoft is planning to release the final version of this update to the masses.
Last week, Microsoft released the first Windows 10 Insider Preview build (16170) from the Redstone 3 development branch. After spending some time with the new build, some people noticed there are hidden and disabled options in it, including the MyPeople feature which was first introduced back in October 2016 and was later cut from Windows 10 Creators Update. The feature is working in this build as expected and almost fits all the scenarios shown by Microsoft officials during its first demo. It has some rough edges and the user experience is a bit ambiguous, which has possibly been the reason for its removal from Creators Update.