This would be good as it would make it transparent and very easy to find out what features and enhancements are being worked on. Ideally it would be something similar to what Microsoft has for Edge:
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While not exactly the same, this page documents many of the Firefox platform features that are planned:
@mconca thanks for this. It would be good to put this in a more user friendly format though like the one Edge has, where you can see the target version, the status, and the target date (rather than just an overview of things coming in 2022). Also, a description of what these changes mean and what improvements they will bring to the user would also be helpful.