For months, Apple fans have been salivating over the next generation of MacBook and MacBook Pros. Both the low and high ends of Apple’s laptop line have aging designs that by typical Apple standards are in dire need of a refresh. The MacBook Air’s clean, thin design may hint at the next generation consumer and workhorse models to come out of Cupertino, Calif. — and it may be sooner than later. The company sent an invitation to journalists for an Oct. 14 announcement.