Microsoft has not officially named this update even though it has used Spring Creators Update several times. It seems that they will choose the name Windows 10 April 2018 Update (April 2018 Windows Update) as the name for Redstone 4. WalkingCat has discovered a video mentioning this name but because the release is blocked, it may be until May, so naming it is not appropriate.
This Windows 10 update will bring features like Timeline, HDR support, Fluent Design design. Microsoft is currently testing an update to Redstone 5 that will be available later this year. Expected is the ability to open the tab application. Hopefully more will be revealed at the Microsoft Build event next month.
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