Difficult to say. If the mucky photos the teenager was laid to send him took place after their 18th birthday, if the threatening messages he sent on social media weren't too sinister and if nothing else emerges now his name is well-known, he might be able to weather the storm and spin it as a redemption narrative then he might get a documentary out of it that'd clean his name up enough that he could be back behind the desk.
I definitely think his career is over - I can’t see his reputation ever recovering from this, even if he could overcome the shame and embarrassment of going in front of the camera again.
Personally, as it appears that nothing illegal has occurred, I'd be perfectly happy to see him return to reading the news. He has a calming demeanour and is very good at what he does.
Now, whether he'd want to sit in front of the camera again is another thing.