Benedict Cumberbatch Could Play Namor

After seeing his work in Sherlock and Star Trek: Into Darkness, I believe I know the perfect role for Benedict Cumberbatch. He could play the villain or anti-hero, Namor: The Submariner.
Benedict Cumberbatch playing namor
Only problem with this is Namor is not currently said to be in any upcoming Marvel movies. But since he is a well known and classic character of Marvel, I would not be surprised if he is worked in somewhere for Marvel movies’ phase 3.