No ID needed unless for a name change (or gender ).
My photo licence was out of date so I needed to send a photo with £17 postal order/cheque. If your licence is within 56 days (IIRC, it says on the form) of expiring you will have to do the same. They use your photo from your current licence otherwise, which is free.
It took me a few re-reads of the information to be sure what I had to do.
When you’re doing the form also tick the box for a D provisional. There’s no reason not to and it will save you the bother of adding it later if you ever do want to go over to the dark side.