The macbook pro with touchbar has no power on/off key anymore - so also there is no shortcut to shutdown the system at the end of the day.

You can add a new application and set a new key on with this steps:

• System Preferences
• Keyboard
• Shortcuts
• App Shortcuts
• +
• Application “All Applications”
• Menu Titel Shut Down…
• Keyboard Shortcut (e.g. F12)

Now you can shut down your macbook with Fn + F12