I know Unova is not yet over and this is about Alola, but still. It's not a question more of a statment. As Solgeleo, aka the Pokemon Sun Lion, is one of the only offical "male" legendaries like Latios and Heatran then you will make it a futa like you did with Latios and Heatran. As Pokemon Sun was my fave out of the Alola games I can't wait to ser her! Espically the photos you might find for her as well as the fight scene as Solgeleo is a lion and lions are proud as heck so I doubt she'll do a quiz like the Latis.
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Got a plan at the minute for the Solgaleo thing.
So when you go after the Alola Lengends, the first part will involve taking care of Nebby to get her to evolve into one of them, which one will be random but it will be explained that the other one is always male (so not always Solga, could be Luna too)
The MC will then travel to an alternate universe with Nebby to find a female of the one he couldn't get in his own universe
Actually, Chainsaw's mentioned before off of commenter suggestions that we'd catch the other Gen 7 Legend in an R63 mirror world, and that a female version of the MC would be there.
I don't think getting a picture of that alternate version was ever planned. Not sure if anyone's asked in that much detail though.