Speculation holds right now that based on what we're seeing in the 3DS/Wii U rosters and filling in the missing Gematsu and veteran characters, there will be about 47 characters total. I'm current speculating on the 51 character roster myself, I think it fits everything better.
EDIT:
I'd also argue that the characters who stand out more are the ones that AREN'T just typical blue-haired main sword-wielding Lords. Ike stands out due to his personality and heavy-hitting fighting style, not because he has blue hair.
But this doesn't have anything to do with Gematsu.