Gantt Chart - Planned end date and Revised end date

On the current Gantt chart custom visual there needs to be the following fields added - "planned end date" and "revised end date".

As with most projects there will always be things that cause delays and affect the delivery of individual tasks. To be able to see on the bars at which point the project was meant to be completed will give a great overview.

This will make it much easier to identify projects that are slipping when you are appending multiple projects to one gantt visual.