"Sherlock Season 4" finds an evolved and mature Holmes by Benedict Cumberbatch. Sadly, however, in as normal as Holmes can be, the "Sherlock" series hero will reportedly die a lonely death.
In an interview with Collider "Sherlock" series co-writers Steven Moffat and Mark Gatiss spoke about Holmes' evolution from Season 1. According to Steven Moffat and Mark Gatiss, Holmes may have changed and adapted since meeting John Watson (Martin Freeman) in "Sherlock Season 1.
However, normal can only stretch so far to apply to Holmes and "Sherlock Season 4" will see him still necessarily distanced from the everyone. Steven Moffat said that this distance is what allows Sherlock Holmes to observe things and people with the clarity that allows him to connect the dots faster and further than anyone.
Steven Moffat and Mark Gatiss likens this distance (that Sherlock Holmes is forced to maintain) to a mountain top. Mark Gatiss highlights that, tragically, Sherlock Holmes can never belong with people because what makes him good at what he does is this separation.
No matter how integrated "Sherlock Season 4" will show Holmes to be, this hero will always be alone. "But he stays on the mountain top, and he will die up there - he's not going to change that," Mark Gatiss said of Sherlock Holmes.
Perhaps this is why "Sherlock Season 4" villains Culverton Smith (Toby Jones) and James Moriarty (Andrew Scott) think Holmes is fair game come the new episodes. While Screen Rant reports that Toby Jones is getting ready to spread evil as Culverton Smith in "Sherlock Season 4," Movie Pilot proposes that so is James Moriarty.
A separate Parent Herald article cites reports in stating that isolation seems to play a large part for Holmes in "Sherlock Season 4." BBC is set to bring Benedict Cumberbatch in the "Sherlock Season 4" premiere on January 2017.