In the new WS 11 UI, the "Project Information" and "Project Group Information" panes appear on the left side of the screen when you open en project or a project group from the Projects. On these panes, some useful key information is mentioned, such as project name, progress, creation date etc. However, the due date is not shown on these panes and there doesn't seem to be a way to configure this.
So I propose to add the due date to the "Project Information" and "Project Group Information" panes.
I realise that due dates can be different for the projects in a project group but on the other hand, these could e.g. be added behind the target locales and should then be visible when you make the "Project Group Information" pane wider or when you click on the "full screen" icon at the top right of the pane.
On the "Project Information" pane, I see no problem to add the due date.