Add ETA column to Print Queue#561

I would like to know when any of my tasks can be finished. I know that there are many dependecies but lets be optimistic. We know how long it will take to print one plate, how many plates there are in a task, how many printers it will be assigned to, and what other tasks should be finished before. So I want to see ETA column with “optimistic” estimation when each task will be done if nothing happends.
What do you think about?
Thanks