Game Informer has posted their NCAA Football 14 preview, discussing much of the same from other articles, but they do go into more detail on the offensive line and blocking in general.
Instead of just throwing in a bunch of new variations of the option, EA Tiburon is re-working its blocking logic as well as runner's motions through traffic at the line of scrimmage. Offensive linemen now try to prioritize defenders better as well as execute different blocking schemes like double teams and zone blocks. If they clear the line of scrimmage they also fire out to the second level more effectively. Ball carriers, meanwhile, should no longer run into the backs of their linemen, but instead pause with their hands on the backs of their teammates while a hole develops. If executed properly, these additions should be a big boon for the franchise, which has struggled with these elements in the past.