I love those 30 seat TPs! But as much as I love them, I find it very difficult for a new project to even see the light of day without a big order.
And that order needs to come from a big player or players, just like happened with the last 19/30-seat generation. And then, over the years, those frames will steer to the smaller airlines and start ups. Just like they do today with those SF34, B1900, SW4, DHC8 etc.