User blog comment:ADour/New MARVEL STUDIOS movies announced!/@comment-1895174-20141028190920/@comment-24901406-20141030151113

Cumberbatch has not been cast as Doctor Strange. Even the rumours all say "final negotiations". Marvel don't announce things until they are (or at least Marvel believe they are) set in stone (unlike say Fox, who still haven't realised Channing Tatum hasn't actually signed anything yet).