The DAS QR code is now scanned and no need for new picture every you renew. This makes the process of renewing a lot faster, you give them the DAS they scan print and out the door.
I'm sure if someone really wants a new picture, they should be open to doing that.
The QR code not only gives access to your picture, but also to all the other information on the card (the names mostly, at this point).
I have not heard whether or not they use the same 'account number' , which is what the QR on the front of the card accesses.
If they do, the DL card could be used to print out a WDW DAS card.
If they don't, it still may be helpful because they could see that you did have a DAS there.