I actually think he'll be good, he has the right energy to go back to the Tennant/Smith days. SURELY people can't kick off about him being black... I know they will... but there's zero justification.
In terms of sexuality, so long as they remember that The Doctor is quite clearly established (going back as far as Eccleson) as being bi or "pan" and they don't suddenly make the character gay (which would make no sense, because of Rose + River Song) there's not problem with his persona either which is, admittedly, quite camp in Sex Ed.
That said, I wouldn't exactly call Tennant or Smith "butch"
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My ONLY concern would be whether or not he'll be able to capture the character's angry/dark side, and that duality is important.