Updates to Listing Requirements
All extensions listed on the JED will soon be required to use the Joomla Update System. This will help to ensure that site owners are always notified of when a new version of their installed extensions is available. Keeping extensions up to date can help to improve security.
This change is a mandatory requirement and checks will be added to the JED Checker. The error code will be: US1 - update sites not present in xml file
Checks will be carried out on the latest zip file that was upload to JED, so developers are asked to ensure that the latest copies have been uploaded to their listings.
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This new requirement will come into force on January 10th 2017.
Final warning emails will be sent out to all developers on December 10th 2016, giving a final notice of 30 days to comply.
Any extensions that do not comply after January 10th 2017 will be automatically unpublished with the error code US1. Such extensions will not be republished until they have been updated and the developer has notified JED about this in a support ticket.
So how shall this work with commercial extensions

Almost all subscription plans do have timely limited access to updates and service.
If this update requirement is mandatory it means that everybody has life time access to updates.
Is this a backdoor plan to ban commercial extensions ?