When Secretary Clinton runs in the General Election, will 'age' become an issue again?

One of the things I noticed during the Primaries ... when Secretary Clinton announced her candidacy, one of the first things we heard the talking heads concern troll over was her age. Going so far as to even tell us lies that she would be the oldest President when first sworn into office (Reagan will still hold that distinction, even when Secretary Clinton is sworn into office in January of 2017).

But then Bernie Sanders happened, a person who is more than 6 years older than Secretary Clinton ... and since then, we've rarely heard a word about the candidates and their age. Why is that? Now that it's clear that Secretary Clinton will be the Democratic nominee ... will the media fall back on their narrative that Secretary Clinton is too old, again?