The Windows 10 Creators Update rolls out with a phased approach starting April 11th, but for those users that really want it early, Microsoft has an Update Assistance that will allow you to update to the most recent update.
For the those of you who are eager to get the Creators Update right away, you will be able to initiate the update manually, starting on April 5th, via Update Assistant. This option is intended for advanced users on devices running a licensed version of Windows 10.