User blog comment:KarpToEndAllKarps/Why I'm not that excited for the next TD season/@comment-455481-20170613065933/@comment-11883116-20170613075509

It's a common misunderstanding. It will get another 20 second theme, but not a new theme song. There was a blog about it. There's also a video on YouTube about Chet. He hasn't been disconfirmed, he just hasn't been confirmed yet (but it's obvious he'll return).