Hello there, draeelectrical.
QuickBooks 2016 will be discontinued by the end of May 2019. We're unable to make it MTD compliant by then. Though, you can still e-file your VAT normally.
Here's an article for your reference: QuickBooks Desktop VAT e-filing & Making Tax Digital.
You can also reach out to our MTD Team here: https://quickbooks.intuit.com/uk/making-tax-digital/.
Feel free to reach out to us if you need any further information about QuickBooks. Thanks.