I don't think it's very likely as I believe they're going with popularity for the DLC characters. Young Link was the closest to unexpected (I'm not sure about Twili Midna but her Imp form is definitely popular, she's still Midna). The characters introduced in Legends, Tetra, King Daphnes, and Skull Kid are popular. Linkle was unexpected because she was a new character. There was a hint or two and the concept art but I still didn't see it coming.
After Marin's reveal, I believe they'll go with popular choices for the other three. I don't think more unexpected choices like Chancellor Cole or Oshus are impossible but I feel they'll choose the most popular charaters. It makes perfect sense considering it is paid DLC.
After Marin's reveal, I believe they'll go with popular choices for the other three. I don't think more unexpected choices like Chancellor Cole or Oshus are impossible but I feel they'll choose the most popular charaters. It makes perfect sense considering it is paid DLC.