I'll announce it later.
One problem I foresee with question suggestions is that the interviewee could just come onto the previous interview thread and answer the suggested questions right there, which would defeat the whole purpose of this setup.
So, I'm thinking that PMing suggestions would be the way to go. Once I've announced the next person, then you can PM questions you'd like to have asked and I'll choose some that way. This would be fun because then the interviewee will have no advance notice of the possible questions (make them sweat a little) and then the person who submitted the question can either fess up on thread, or they can keep mum so no one will ever know who asked that question (other than me, and I'm not tellin')