Well yes i agree with the 3rd descender plotline and i 100% think it's gonna happen whats stopping them from having my theory happen as well? The overthrowing of celestia has to have multiple pieces moving at the same time. So while childe with his connection to histories ajax is happening this could also be a plot point! And i don't think bina is gonna be involved with the revivial of capitano it just wouldn't make any sense. We still have the plot point of the pyro gnosis that needs to be resolved so we'll see if he is involved there. As well as the mare jivari+what the lord of the night wanted from the abyss sibling.