Shape/path Morph transitions
Add the option to morph an element to another from a step to the next during transitions.
For example a button in Step 1 can be linked in the prototype to a input field in Step 2. Then during the transition, AdobeXD should morph the button element to the input field.
Both elements can be made with SVG assets, and morphed with the Gsock SVG Morph animation library.
Check out the auto-animate feature, which does precisely this.
Roger Siegenthaler commented
This would be amazing, especially if it worked a lot like MS Office's morph animation. Just requiring the same element to be on two artboards leads to automatic transitions between when linked in the prototype mode.