Writing in his bog Microsoft's Nathan Mercer said the Anniversay Update will be the last feature update for 2016 but there will be two additional feature updates expected in 2017.
Vole is not saying what the features are but the next big feature update to Windows 10 is rumored to release some time early next year before spring. It will be called "Redstone 2, the revenge of Redstone" (we made the last bit up. The Windows 10 update may coincide with hardware updates to Microsoft's Surface Pro and Surface Book devices. Microsoft is already working on Redstone 2, with internal builds out for testing.
Redstone 2 should be significant although "Redstone 3 " update will arrive later next year. Unless it is Lord of the Rings everyone knows the third installment is disappointing, lacks most of the original cast and rushes straight to DVD.
This week's Anniversary Update (codenamed Redstone 1) marks the second big update to Windows 10 since its introduction last year so it is seems to be forming a pattern which someone will get annoying and start calling it tock tock, tick or something.