It would be handy to have a view start/stop date on the HTML module so content can be scheduled. Maybe it's for a notice on the website, a special event callout box, registration box, etc.
I'm not sure where or how technically. Maybe there's a new tab called "Content expiration" in the settings and there's a field for start and stop dates. If not within the date range the module only appears to logged in admins. Ideally next to the settings/edit links there would be a little hidden icon or notice so admins know the content is expired or is a scheduled module.
Just thinking out loud, not sure on exact implementation of course. But seems useful and something I get asked about from time to time for scheduling content.