It looks like Marvel Studios has found there Sorcerer Supreme in 38-year-old English actor Benedict Cumberbatch, Deadline reports:
The news comes after talks with Joaquin Phoenix around the time of Comic-Con went south, and Marvel went back to the drawing board. With names like Jared Leto and Tom Hardy also in the mix, this is obviously a coveted role. [...]
Scott Derrickson is directing Doctor Strange and Jon Spaihts is writing the script for the pic (the first draft was penned by Thomas Dean Donnelly and Joshua Oppenheimer). Doctor Strange was hatched by Stan Lee and Steve Ditko during that Marvel Comics heyday of the early 1960s. He’s a neurosurgeon who becomes Sorcerer Supreme, protecting Earth against magical and mystical threats with powers of sorcery, mysticism, and martial arts. Marvel’s Kevin Feige is producing.
A release date for the film hasn't been announced, but you can catch Cumberbatch as gay World War II codebreaker Alan Turing in The Imitation Game out November 14.