Yes, they'll age great! But, they can't be carbonated as most glass in jugs isn't designed to hold pressure.
The only other thing I can think of that would be an issue is drinking the cider. A gallon is a lot! If you pour out of the jug, then you'll be exposing it to oxygen and it'll have to be drunk relatively quickly. If you age it in the jugs, though, and then bottle by racking it out of the jugs, it'd be fine.
Broken Leg Brewery
Giving beer a leg to stand on since 2006