Didn't he say that the idea of the 60-minute special being all there is is rubbish?
Indeed. But the other version keeps getting repeated, despite the fact that the video is there for anyone to watch.
His words would seem to say one thing while the production realities another. If there are more anniversary "things", I think they'll be either in the Christmas special and/or during season 8. It doesn't seem feasible, from what is known, to include more specials in between season 7 and season 8.
With that said, I think it would be great if there is more. So, it would be great if there was a surprise.