I've heard this one a while ago, but it recently came to my mind and I just feel like I have to share it. What if Claudio is possessed by an evil entity in Tekken 7?
Jun might be able to help him with this.
The tone of of the ending in his episode hints at something nefarious going inside head, plus the emphasis on his left eye with stigma (parallel to Kazuya?)
At least I think that makes for a more interesting story than what the game tells us