With the cool new embeds I find that I need to be able to control this content more directly. I have some fields that I use together in the actual templates of both the record list and display template to create a single thing so when using the cool new embeds they look like a bit of a train wreck. Specifically for pages it would be awesome if there were a default "embed" template that you can set per database and use your custom fields and display however you want.

Agreed.  I would like to add an embed code to display Steam items from a link using the Steam web API: