Jessica Hynes cameo confirmed

Its been rumored that Jessica Hynes would be returning for a cameo but now it's official, thanks to the set pics on planet galifrey, and I09 . But it's the present day, not pre-World War I England. And Hynes appears to be playing someone named Verity Newman (a play on Doctor Who's creators, who included Verity Lambert and Sydney Newman.) She's written a book called A Journal Of Impossible Things, apparently based on the journal the humanized Doctor left behind. And she's doing a book signing, where the Doctor shows up to have words with her. The Doctor is stern but sad, then he turns and walks away.