Here's another article covering the same. It may have a few more tidbits of info.
https://www.sciencealert.com/lab-grown-lungs-pigs-success-2018Basically, I'm just watching the various places that are involved in research and trying to judge which ones are out ahead. I have a gut feeling that either scaffold-printed organs or stem-cell injections in existing, poorly functional kidneys *might* happen within a 5-year window. Printed body parts are already being used for less complex organs like the esophagus.