You may readthis post to see the changes and new features.
This time, Microsoft did not bring any functional updates.
Instead, it focused on only a lot of bug fixes and made some improvements on stability.
On this account it is reasonable to say that they will mainly concentrate on bug fixing.
Windows 10 receives new features on a regular basis.
As Microsoft has stopped adding new features and is now solely focused on stability, this timeline is reasonable.
Anyway, it is believed that the updated Windows 10 will be available very soon.