Im pretty sure Sol had his suspicions about Justice being Aria since the first game due to his conversation with Justice before she dies, and also his conversation with That Man in Overture, its just in Xrd that it's officially confirmed
Yeah since woolie vs doesnt cover Strive itself, you probably can just watch Strive's actual Story Mode if you feel like it- it being broken into Chapters should allow for breaking it into smaller parts 👍 After Strive's Main Story mode, the smaller side story "Another Story" could be watched, and if you feel like it, some arcade modes (they're mostly post-Main Story 🤔)
I mean I definently wouldn't say Slayer DOESN'T wanna fight Gabriel. They're rivals, and since Slayer loves battle so much I'm sure he'd always be thrilled to spar with him. I find it interesting tho that Gabriel is a world leader while Slayer is an ex assasin who mainly targetted world leaders... Makes you wonder what their mutual history is. The GG devs are doing an AMA soon and I submitted a question about that so I hope they respond to it. Like many are saying btw Woolies series doesn't cover Strive so I def hope you do Strives story mode! You don't need to worry about the arcade modes in Strive until after you've watched the story, they all take place after the story, and most of the DLC character arcades don't even have much to do with story mode, but they're the best ones imo. Dizzy is coming to Strive on Halloween btw I'm so excited to play her arcade,,,