Pinned keyframes and Dynamic zoom effect
It would be nice to be able to pin specific key-frames to the beginning or end of the clip so that the animation is preserved even we change the clip duration similar to how it works with some essential graphics templates.
Also I'm missing a dynamic zoom effect that will perform a scale in/out to a clip no-matter the duration.
There is a way to fake it by saving a scale as a preset with scale type but as soon as you change the clip duration, you have to re-apply the effect.

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Pierre Louis Beranek commented
Hi Angelos, I created a new FR for the same thing you're asking for, keyframe pinning, but with a proposed solution: https://adobe-video.uservoice.com/forums/911233-premiere-pro/suggestions/41391664-keyframe-pinning-options-in-effect-controls-pannel.
What do you think?