Someone may correct me if I'm wrong, but ever since the frequency was changed from 103.3 to 103.5 and the antenna moved to the Riverview tower, 103.5's primary and market designation is the "Tampa/St. Petersburg/Clearwater" DMA. Even if the city of license is "Bradenton", it's always followed by the market name it belongs too. Same goes for WSJT (Lakeland/Winter Haven is no longer the primary DMA, tower is near Ft Lonesome), WLLD (antenna in Seminole), and even WHPT, who some think is still is a "Sarasota" radio station. Ownership limits have not changed. Both CBS and Clear Channel have had the maximum allowed 5 FMs in Tampa for quite some time. (Cox gets away with 6 due to the fact the stronger signal contours of 97.1 and 102.5 don't overlap) Clear Channel still retains the maximum 4 FMs in Sarasota/Bradenton. This COL change to Gulfport doesn't change the numbers.
In a related matter, Radio-Locator also lists a construction permit granted last fall for 95.7. Gives them permission to move the antenna from the tower on Gandy to the AM 680 stick behind Derby Lane. Same height, power, and class. What's that all about?