I am posting here per @Erik1 idea on the Unconventional FL EX Cards.
Originally pitched between @j_c1 and @Erik1 , this could be a card that showcases all kinds of information (i.e. cpu temps, battery status, wlan status, a symbol for unread mail) on a tiny e-Ink/LCD screen.
Here is an idea of how it could look:
I added a small button in it, and this one could flip the widgets on the screen (i.e. battery, emails, etc.) and each one can be custom made and added onto the screen.
It reminds me of the days when iBooks or Macbooks would have battery indicators in the body of the laptops too.
I also added some ports into it so that the expansion card does not go to waste and can also serve to at least give some ports. The graphic illustrates my wording better hehe