The interview comes from that book! Kantopia sent it to me yesterdayWell that article pretty much reaffirmed what we believed about relevancy and time frames, so I'm not too surprised to hear that (though a bit saddened since some of my choices fall into that issue). It is a bit interesting how some characters are more restrictive in their timing then others, but I guess it's more of a guideline on his part rather then a strict rule. As for DLC coming to an end, I believe that December is when we're getting the last major bits of news. We could get characters past that point if they're announced ahead of time, but I feel that we're going to hit that cutoff sooner rather then later.
Also, it's funny that he brought up that Roy used to be called Ike since Serenes Forest recently posted an article about FE64/Binding Blade's development with that information. It's pretty funny timing how this interview and the Making of FE book's translations came out not too far from each other.
There was, while it wasn't too popular early on, you still would see it pop up from time to time. It especially got notorious when the Sceptile hype reached its peak as that was one of the sticking points used against other popular Pokemon like Blaziken.
I haven't read that chapter yet!