Metrics around cycle time / lead time, throughput (velocity), etc. etc. are very helpful in analyzing processes, pinpointing bottlenecks, and providing estimates.

Metrics such as those mentioned here would be incredibly valuable.

I just started investigating Wekan as a replacement for pivotal tracker, which provides completion estimates based on velocity.

I am an FE engineer with expertise in data visualization, and could take on this feature, but would need guidance wrt design and integration.