I purchased my MBA 13 in mid February. It would have to be some very nice spec bumps along with battery. Since I transport mine every work day in and out of customers. I would consider a trade in for a new 11", if the battery spec went up to 7 hours along with some other nice bumps. Honestly though I think my next new computer should be a replacement of my iMac, Waiting to see what the next Mac Mini brings