If you want people to be excited for the Last Time is Now Tournament, announce participants that people want to see win it.

As of right now, the only people we know of that could be Cena's final opponent are Rusev, Damien Priest, Shinsuke Nakamura, and Sheamus. I love Sheamus, and I really like the other three, but it would be really underwhelming for any of them to be Cena's final opponent. I don't mind that they're in the tournament, somebody has to fill the bracket, but if they're not going to announce all of the participants at once, at least put one person who would be exciting to see win it in the first set of matches.