The faux NBC isn't neccesarily a given. WLW still carries ABC (switched back after Darryl Parks was dissatisfied with Fox.).
The rest of my statement was "stay all-news in morning and afternoon drive." Taking a look at WBZ's ratings and financials, I see no reason to change much of anything. The fact is that CBS already made the big change by adding talk at night. Clearly iHeart has tough decisions to make with these two stations, and it will all come down to profits. In LA and Cincy, local talk was more profitable than syndication. It doesn't matter who we're talking about: Making money wins over saving money. If WBZ is making money, and from what I can see they are, then iHeart will mostly keep things the way they are.
Although, yes, they will replace the CBS traffic people with Total Traffic at earliest opportunity, and there will likely be some engineering and secretarial riffs. Plus, as I said earlier, they will replace ABC network news with NBC.