Love this! One thing I always love about regeneration is seeing the newly regenerated Doctor in his previous incarnations clothing so I am really very happy to see a piece of art on how Peter Capaldi will look in Matt Smith's clothing!
I hope you plan to do more "Post-Regeneration Doctor" art work!
Oh, yeah. Next year easily. Apart from speculation on what PC's costume is, Capaldi's head on Matt's clothing is as far as realistic in-show photoshop and artwork will take us right now with the 12th Doctor.