Hi @Tim Butterworth ,
As far as I know Microsoft will continue to release Windows 10 builds just like previously until the retirement of Windows 10.
Feature updates for Windows 10 are released twice a year, around March and September, via the Semi-Annual Channel. They will be serviced with monthly quality updates for 18 or 30 months from the date of the release, depending on the lifecycle policy.
You can get sneak peaks of upcoming Windows 10 builds by joining the Windows Insider Program.
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Leon