I'm not sure any owner would have both a Soft AC and a mainstream AC in the same market. The only way iHeart would put a Breeze station in the Chicago market is if one frequency, 93.9 or 95.5, is Soft AC and one is Hot AC. Maybe this is only iHeart using the Breeze moniker on an HD subchannel for now, to block someone else from taking it, as discussed above.
As for a Breeze station dooming Me-FM, maybe not. Me-FM is all oldies. Soft oldies yes, but not the same as the Breeze, which plays a handful of songs up till 2017. Ratings might not be as good for Me-FM if the Breeze is in town. But on a Franken FM, what else would they do with it? Since they are trying to roll it out as a national format, might as well leave Me-FM on 87.7 in Market #3. Nobody expected it would become a top 10 station anyway.