Guest characters that can potentially be dlc for Tekken 8

Now, as most gamers are aware, Tekken 8 is set to come out soon. As of now, the release date isn't set. But given the fact that the beta is currently happening, one can assume that the game is coming fairly soon.

As of now, Harada has already stated he was focusing on the main characters of the game and that people shouldn't expect to see guest characters. But in this era, where pushing video games as a service is the norm, it's reasonable to expect guest characters will possibly be part of the game, even if as DLC. Now with that said, we can speculate which franchises may lend their unique characters.