Essential Graphics Responsive Backgrounds
Responsive design should come with an option to make background compositions or layers independent of the protected areas.
For example, if you have an motion graphics template in Premiere Pro that has a protected intro and outro, but you also have a background that animates the entire time, you could adjust the duration of the template clip without affecting the background outside the protected areas.
It could be set up as such: 20-second composition (which ends up being the template) and 40-second background precomp. You could then extend the clip in Premiere Pro to 40 seconds without affecting the background animation.
Hopefully that makes sense. I know this is possible because I've seen an extension that can do it, but this would be amazing to see as a built-in feature for Essential Graphics.