I think The Final Problem this is going to bring this Shiny, Flashy Sherlock more in line with the ACD one in one aspect, which is the understanding that being flashy and clever all the time isn't a great idea. He's so cruel to the kidnapped children's schoolmistress. To get the short answer he probably could have gotten as someone other than imperious, towering, cheekboney man. ACD's Holmes is a master at concealing what he has with disguises that are brilliant not only because Holmes is good at makeup and costume but because he has the ability to perfectly mimic the people and types he observes so closely and subvert his desire to be clever all the time.

I also find it telling that one of the earliest adjectives Watson uses to describe how Holmes greets him in "A Study in Scarlet" is "cordial." Not that I dislike Moffatt and CUmberbatch's prickly version, it's just something that Sherlock has to learn.

And lordy, John broke me at the gravesite. Utterly broke me.