Would it be correct to assume because they didn't show Siegfried as a skin to Nightmare in the trailer, they might be different characters in this game?
IIRC when they first revealed Tekken 7 they did it with Kazuya vs Heihachi, two characters that had rivalry since the first game and the whole main story revolves around them. Is there anything important about Mitsurugi vs Sophitia relationship?
I hope it will have long hair choices. Also I hope it's a flexible/modular system so I can change shoes, gloves etc separately. Lack of these really disappointed me in Tekken 7