I'm pretty sure that from the second Kevin Jonas married Danielle she has probably been wanting to get a reality show. Why should she just be known for marrying a Jonas when she could become famous on her own. In ten years, Danielle might even be more popular because what will the Jonas Brothers be doing in ten years? Playing summer shows at festivals and casinos to all of their old fans who will have kids of their own.
If you don't think the show will be totally focused on Danielle, then guess again. The show is called Married To A Jonas and is going to be all about how Danielle has adjusted to being married to a celebrity.