Since the word they used was Augments rather than Trials, I'm assuming that the first upgrade will boost the power of the existing armor with respect to the existing stats, and the second upgrade will boost the power of Merit-related abilities. Hopefully this is done in addition to the upgrades from the first stage, because choosing between a Duelist's Chapeau +2 and a Duelist's SuperChapeau that boosts Dia 3 potency is going to be annoying.
