NBC Nightly News might expand to one hour

A friend brought this to my attention. With the NBC Nightly News doing so well in the ratings recently, there has been talk about expanding the now half hour newscast to one hour. Here is a New York Times article that says this was mentioned as a possibility but that no details have been discussed.

"But NBC’s surge in the evening has been strong enough for the news division president, Steve Capus, to suggest that NBC is positioned to be the first network to expand to a full-hour newscast. (He did not set any timetable for that move.)"

I'm wondering how you feel about this idea. Will extending the newscast help them keep their viewership up, or will it deter people from watching their station?