MacBook Air Refresh this summer?

Im going to start College in a few months, and I will be getting a macbook but not sure which one I like the Air but I would like to have a retina display. According to recent rumors, Apple could be possibly making a retina display air, but could also not be because of the trades off. The Macbook Pro w RD, is a gorgeous and its light but the Macbook Air still beats the pro when it comes to weight and price!

Is a Macbook Air Retina Display in Apple's pipeline for this summer?

Another quick question is it worth getting a Macbook pro w/RD or go with a pro for college?