In 1999 and in 2008 when the last big rebrands happened, you had Local News - Regional News - National News - and World News. In 2013 the same branding was re-rendered in HD and refreshed slightly with on-screen graphics, sets, and Music
Now there would be more to consider with a refreshed identity including, Global News services like BBC Mundo, Turkey, An Lá. Global News channels like BBC Arabic, BBC Persian. BBC News Online along with social media video content.
Doing it all in house would be do-able, but with so many outlets and audiences to consider, bringing in an outside agency would probably make more sense, but that does cost money. At a time where the BBC is under attack and pressure.
I think the brand and identity does need refreshing. BBC Reith Serif will be a very visible change and that will help it stand out where other UK news agencies avoid Serif fonts.
But does it make sense to ditch aspects of the branding that has stuck since 1999, now synonymous with BBC News. It could reduce recognition, potentially alienate viewers. To consider these kinds of changes, would require focus groups and in-depth research as was done in 99. Look at how people see BBC News, and decide how they would like to be seen.
The more involved a rebrand becomes, the more it costs, and the more the BBC would have to defend itself from critics. Maybe after Brexit, they could cite a need to strengthen a British brand abroad, and to compete against larger news sources.
KELGE and channelsurfer gave kudos