The Great Chicken Sandwich Wars were the summer before last, and it feels like that event was at least 75 years ago. .But today, Popeyes is back with another new sandwich.The Cajun Flounder Sandwich will be available in restaurants and for delivery starting on Thursday, February 11th.The Cajun-spiced fish filet is topped with tartar sauce and sliced pickles.And it's served on the same buttery brioche bun as its fried chicken counterpart. .Anyone who isn't sure if they'll dig the fish sandwich can add Sandwich Insurance for only an extra 15 cents.So if you don't like the sandwich after a couple of bites, you can trade it in for a chicken sandwich at no extra charge