User blog comment:DeathBolt/Will You Be Watching Total Drama: Pahkitew Island?/@comment-5928665-20131201091510/@comment-7985501-20131201093017

I'd agree with writting better plots for their existing characters, but with new characters come new drama/plot which they would need if they want to last another four season. Majority of the existing cast are either completely used up or one-note.