Still got a paper one here...
Can find nothing official on 2015...Other than the paper counterpart of a photo license being phased out.
could find this though :
Though no new all-paper licences are now issued, if you have one these generally don't expire until you're 70, so you don't need to do anything until then unless your address or personal details change. However, by 2033 all licences must be in the photocard format; you'll receive reminders to update it closer to the time.
Once you reach 70 there's no fee to renew, and you'll then get a photocard. If you want to upgrade before then, you can apply to change your paper licence for a photocard, though it'll cost £20 and you'll need to show extra ID (see Directgov).
There do seem to be some rumours that they will 'recall' old style licenses shortly after the counterpart change in 2015.