Honestly, I think including advertorials on Today will tarnish its reputation like how 10 tarnished the GMA name.
My advice to Nine, leave Today alone. If you want to increase advertorials, I think Nine should air Today until 8:30am, then air Today Extra from 8:30 til 10am with Mornings 10am til midday and move the 11:30am news to midday to compete with Seven News.