Looks more and more likely that my man Ebyssian will, indeed, be the Black Dragon Aspect.
As I've said before in these campaign chapter threads, I was initially against Ebyssian becoming the Aspect of the Black Dragonflight. During 10.0 about discussions between Sabellian or Wrathion for Aspect, anyone who called for Ebyssian just, to me, reeked of 'enlightened centrist avoiding the discussion by claiming to be better than everyone else' They were making up a third option so they didn't have to commit to either of the current options. However, this has changed both with a different context and the events of these campaign chapters. The context being that Ebyssian is the dragon that both Sabellian and his Obsidian Brood and Wrathion and his Blacktalon (hell, throw Emberthal and the Dracthyr in too) respect. Anyone else leading would face serious opposition from the other, and with valid concerns. The events of these campaign chapters reinforce this- it's Ebyssian who interacts with both Sabellian and Wrathion, and manages to make them work towards the same goal. Additionally, making Ebyssian the Aspect also preserves the characters of Sabellian and Wrathion. Sabellian is supposedly free of Old God corruption, but we haven't 100% confirmed it without a doubt. And remember that Neltharion was fine (despite hearing Old God whispers as a proto drake) until he became Aspect, where the weight of his duty and closer connection to the Old Gods' earth eventually broke him. Making Sabellian Aspect might doom him to go mad and have to be put down, just like his father before him. As for Wrathion, becoming Aspect would be a very drastic change, one that his personality hasn't developed enough to handle. (I mean hell he's only 12 years old- maybe equivalent to mid teens considering he's precocious due to the experiments on his egg) On a sillier angle, him becoming Aspect would mean he wouldn't be 'The Black Prince' anymore, and that's such a mood I wouldn't want to lose it. :PSo I am fully throwing my support behind Ebyssian for Aspect of the Black Dragonflight. He is fortified against Old God tampering through both the Hammer of Khaz'goroth and the potion Wrathion made him. He knows how to interact and deal with mortals considering he has basically raised the Highmountain Tauren tribes for close to ten thousand years. He commands respect from the major players of the Black Dragonflight (Sabellian, Wrathion, Emberthal).
there's also the option of emberthal becoming the leader. created by neltharion there might be some kinship. since we're on the dragon isles, the technology to upgrade/empower her is just around the corner. the other 3 dudes could drop out of the competition by being killed off, being corrupted (shadowflame wound flaring up again/claiming oathbinder for themselves) and/or simply declining to take the job/passing it along to the new generation; leaving her as the only option
I hate to be contrarian, but I somehow find it most likely the one to end up being Aspect of the Black Dragonflight is Wrathion. Mainly because he's the only one with a unique model. Both Sabellion and Ebyssian have the new random generated dragon models, where the Dev team basically took a new hd model for the basic dragon body and had randomized assets like fins and certain styles of horns added. Contrast this to Wrathion, who's aspect model will likely be The Black Emperor model with less lava.