We are only 20 days away from WWDC 2013 and news is very slow. We suspect this might be because Apple will not release any new products during WWDC this year. However Apple has increase it's orders of Macbook Pro's and Macbook Airs for the second quarter. This suggests that Apple is set to give the Macbook Pro and Macbook Air a spec update during WWDC.
KGI Securities analyst Ming-Chi Kuo suggested that Apple would drop the non retina display Macbook's but now believe Apple will keep them due to their high demand.