The All News Format is so expensive to do right. I doubt GM would invest in the infrastructure to go all news. They tries doing all news years ago on 1150 and it failed big time. I am happy TKK has beefed up their news content but I don't need traffic reports every fifteen minutes especially in the evening and overnight hours. The Metro News product is not the best. For example, last week they were still reporting on the death of Former Boston City Council President Bruce Bolling two days after he died and the story contained factual errors.
Since TKK began running NECN News in the morning I have switched to WBUR and sometimes never turn on Eagan and Braudie. One of the best parts on BUR, is they don't run traffic reports every 10 minutes.