The NIH panel on postdocs proposes to shorten the eligibility period for K99 to 3 years down from 5 years.
I understand their motivation is reducing the training period for successful faculty, but I think an unintended consequence is it is going to reduce scientific innovation. If you have to show you are on a successful trajectory that early, people are going to choose safe projects.
https://acd.od.nih.gov/documents/presentations/12152023_Postdoc_Working_Group_Report.pdf