@cwoodwar1 - I like that ability to have a scheduled changing cover page. I had a thought and partially tried it out. If you create a page for each module (what you would use for a front page), you can set the release time for viewing of the page. Then on your front page you could have a link for each module with a description (i.e Module 1: blah blah blah (available 9/6/2025), etc. If you have about 10 or 12 modules it would not be too bad of a list. There are ways you could minimize the foot print as well - I won't go into that here because I don't really know how to explain it (or what you want)
My original thought for the above was if you could somehow embed your page into the existing front page and that page would display only for the times you give it for availability. Then you would embed all the pages into the front page each with their non-overlapping time of access and it would change for you automatically. Unfortunately, I do not know how that is possible. That is I would like to be able to insert the page contents (not a link) only when the page can be accessed.
Just a thought and I understand it is not exactly what you want.
Good luck
Ron