Do Hanzo and/or Genji's dragons show up much in Reverse au? Either from battle or, I dunno, poking around their heads or something?
Genji’s is pretty much wired to his dragon, to the point its presence is detectable on him even when he hasn’t summoned it; his eyes have a slight green glow which is visible in very dark spaces, you can occasionally see his dragon ‘move’ beneath his tats, usually in faint light that seems to ‘rise’ within him, similar to how one might see a sea creature’s scales briefly as it breaches water before submerging again, and if you physically touch the dragon tattoo on his body, it is distinctly hotter than the rest of him. He was so heavily reliant on his dragon for survival during the worst years of his rule that he’s become very finely tuned to it, and will frequently formulate his actions around its mood and its rare, otherworldly suggestions. I wouldn’t say he talks to it, and it doesn’t manifest as a physical presence, but he definitely has a profound understanding of it all the same (except when it is intentionally obtuse).
Being so closely bound to it now, he often uses it in fights, which gives him an obscene, inhuman advantage over literally anything–human, animal, or machine–that can’t outrun him. However, while he can still send it out like Hanzo for long range attacks, doing so taxes him profoundly, and he avoids it.
As for Hanzo, while when he was fairly in tune with his dragons when he was younger, this is not as much the case now. Hanzo’s dragons exist as more fully realized, separate entities than Genji’s does, and are capable of making choices without his input. Like Genji, Hanzo allows his dragons whims to guide him, but to him their consciousness is distinctly alien and he finds he struggles to comprehend their desires, when they deign to make them known.
The aftermath of his and Genji’s fight left him a bit unfocused and out of touch with them (probably because he started to doubt himself and came to believe he was no longer worthy of them, which they picked up on), and that caused them to become fairly unruly. There was a period of several months early in his time with Overwatch when they would just manifest themselves while he was sleeping and wander the watchpoint he was stationed at, not hurting anybody but just passing through walls and ceilings before dissapearing (which made some people think his wing was haunted). They have also been known to manifest in random objects and places he’s come in contact with, leaving a distinct heat and unearthly blue glow, which has frightened Many People. Because they have so much free will, he’s highly reticent about summoning them, and at least once they have refused to attack the person he sent them at turned on him instead, more shaking him up than actually doing any real damage.
Since joining up with Deadlock, he’s found that a lot of McCree’s sharpshooting advice has helped him get more in touch with them, and he often just sends them out over the desert to ‘stretch’, giving them a bit of freedom rather than attempting to squirrel them away inside himself. It seems the more honest and forgiving he is of himself, the more they yield to him, and so he’s been seeing slow but steady progress in that regard.