I know we were all surprised by the fact that Beyond the Brave's cover theme was not in fact Jaden Yuki and Neos/Neospacian reboot, but rather Joey Wheeler and his Battle City deck reimagined.
Now that got me thinking, what if the second anime legacy support also followed in the footsteps of Chaos Origins and had another prominent GX villain get their old deck reimagined? Who would you want to see among the options, another main antagonist like Season 4's Darkness, or to stick with expanding Kagemaru's Shadow Riders from Season 1?
For me, I would definitely be interested in seeing Camula get a reboot of her old Vampire deck. It always bothered me that despite being one of the most memorable Shadow Riders (tied with Amnael for the most duels with the Spirit Key holders), her original line-up is so weak, and to add insult to injury Vampires later became an Xyz/Link focused deck. Therefore it would be so cool to see her deck follow Kagemaru's and the Sacred Beasts. You could stick "Infernal" in front of the names of the retrained monsters (e.g Infernal Vampire Lord) in reference to Camula using the (anime-only) field spell "Infernalvania". Also cool would be to give her original ace Vampire Genesis the Neos Wiseman treatment, whereby you retrain it into a Fusion monster and if it gets destroyed you special summon the original ignoring its summoning conditions. Lastly you could also go the Shining Sarc route and have the monsters gain extra effects if Illusion Gate is in your GY since that card played such a huge role in Camula's duels.
Anyways, that was my example. What about you, what would your dream pick be for the second anime legacy support slot?