Development on the next Windows 10 feature update, codenamed Redstone 5 and officially known as the October 2018 Update, is now complete. According to sources familiar with the matter, Microsoft has internally signed-off on the RTM (Release To Manufacturing) build of Redstone 5 at 17763, which is build that has been in testing with Insiders for more than a week on PC, HoloLens, and Xbox.
As with every Windows 10 feature update, Microsoft will continue to work on fixing minor bugs and issues that will be serviced via cumulative updates, the first of which will likely rollout alongside the feature update itself in early October. I'm told that Microsoft is aiming to begin rolling out the October 2018 Update to the public in the first week of October, or on October Patch Tuesday.
Assuming there are no last minute issues with the RTM build, we should expect to see the October 2018 Update begin rolling out within the next couple of weeks. It's worth noting that Microsoft did end up delaying the April 2018 Update earlier this year by a few weeks due to a last minute show-stopping bug that was found in the RTM build. Let's hope that doesn't happen this time around with the October 2018 Update.
Now that development on Redstone 5 is complete, focus is fast shifting over to the next Windows 10 feature update, codenamed 19H1 and scheduled for launch in April 2019. This update will add more features and OS improvements both on the surface and under the hood. Features rumored to be included are Sets, Control Center, and more. We'll have to see what Microsoft has in store for us over the coming weeks.