They admitted they have planned series 4 and begun mapping series 5!!!
They said they were sat in a trailer at the Sherlock filming base, in the pouring rain and it accidentally just happened!
Yessssss, I was just going to say this but thought someone probably would’ve beaten me to it - series 4 all mapped out and all they need is for the BBC to commission it, which obviously they will
I also liked when the Moff said that he’s not a genius. “That’s as modest as he gets” :P