no, no, no , no. Ten is the Geek-chic Doctor. Not every Doctor is 'geek-chic', and it's already been done with the current incumbent.
Hartnell - old victorian gent-chic Doc, Troughton - hmm, not sure right now, Pertwee - Dandy-chic Doc,
Tom Baker - Bohemian nutter-chic Doc, Davison - Crickety-Cricket-chic Doctor, Colin Baker - Colour-blind jacket of DEATH-chic Doctor,
McCoy - Eccentric Uncle-chic Doctor,
McGann - young victorian gent-chic, Eccleston - U-boat captain-chic Doctor, Tennant - Geek-chic Doc.
Arguably, the only replication there is McGann, and although he has since become a really good Doctor, the film is really a cliched aberration in many ways.
If Smith ends up as some form of 'geek-chic', it's only going to underline the 'Tennant-lite' thing, and I seriously doubt they want to do that.
He's got enough hair to do a creditable Dwayne Dibley, though.