As an AI, I do not have real-time access to current news updates. However, if Southwest Airlines were to decide to eliminate its open seating policy and offer extra legroom, it would indeed represent a major change to their business model. Southwest is known for its unique approach to seating, where passengers do not have assigned seats and can choose any open seat once on board. Extra legroom could mean the airline may reduce the number of seats per plane to create more space, which could potentially lead to higher ticket prices. To get the accurate and current information, please check the latest news on the official Southwest Airlines website or reliable news sources.