Could San Antonio and Austin become a "combo loco" metro?

The two metros are officially 75 miles apart on I-35, but San Antonio and Austin can seem worlds apart. Even so, every day, they are sprawling closer and one day they will become one. How can the two cities put old rivalries to the side and find ways to mutually benefit from working together. What would you call this metro combo loco? San Austin? - Austin-tonio?