From this link https://blogs.technet.microsof...
"Also from October 2016 onwards, Windows will release a single Security-only update. This update collects all of the security patches for that month into a single update. Unlike the Monthly Rollup, the Security-only update will only include new security patches that are released for that month. Individual patches will no longer be available. The Security-only update will be available to download and deploy from WSUS, SCCM, and the Microsoft Update Catalog. Windows Update will publish only the Monthly Rollup â" the Security-only update will not be published to Windows Update. The security-only update will allow enterprises to download as small of an update as possible while still maintaining more secure devices."
So I am only going to apply Security-Only Updates. Download it from the Microsoft Update Catalog page, which can only be used with Internet Explorer. This will only be good for a currently patched PC starting in October.
I also noticed this wording.
"From October 2016 onwards, Windows will release a single Monthly Rollup that addresses both security issues and reliability issues in a single update."
So I doubt it will include All optional updates, just security and reliability updates.