User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-173.79.14.220-20120916042533/@comment-111.220.226.174-20120916234151

^Cissie.

between cassandra sandsmark and cassandra cain, there are enough cassies imo.

Oh also by deathstroke apearing, jericho+ravager (IV i think...), by impulse, max mercury, by tula being dead dolphin, then cerdian, by hal jordan, arisia rrab, by JSA, stargirl, by red tornado, cyclone, by sandman, sandy the golden boy, by wildcat, tom bronson, by alan scott, jade and obsidian, by bludhaven, tarantula, by joker, harley quinn, by cadmus Batman II, or III, or IV..., depending on what you count (terry), by beast boy, doom patrol, by zatanna, zachary zatara, by Kent Nelson, Kent V. Nelson, by Lian, Mia Dearden and Prometheus, by Tim Drake, ariana dzerchenko and stephanie brown, by Orm, kordax (?, Aquaman's son with the inuit chick that orm killed), by Aquababy, Charbyddis, by secret, spectre, by, . There are thousands of potential characters who could appear because we've characters that are fairly strongly linked to them, they might be less likely or whatever, but they're still in with just the same. The DC universe is too strongly linked for that to work in any practical way.