Ability to have a to-do due date based on the status of a feature

There are times when I want to follow up with someone internally on sales, AM, or support after a feature or bug is shipped. Right now I add them as a Watcher and schedule a task when I think it will be done which forces me to move tasks if delayed or get to them late if we shipped before the estimate.

1. Task gets added to Aha

2. Due date is determined by status of XX

3. When status changes to XX task due date update to the current date.