"One Punch Man Season 2" release date and updates are highly searched online, especially after the announcement of the follow-up was confirmed during the "One Punch Man Fall Festival" event. Since developments are still in the shadows, rumors and speculations about the upcoming episodes continue to proliferate online.
It can be remembered that during the season ender of "OPM," the main protagonist Saitama fought Lord Boros. At one point during their fierce battle, some anime fans believed that Saitama might have already faced his ultimate rival. However, during the latter part of the skirmish, it was revealed that the white-caped hero did not even used the fullest of his power in fighting Lord Boros.
With all that in the books, the question of who will Saitama fight next in the upcoming "One Punch Man Season 2" still remains a mystery to some. However, Redditor "xahhfink6," somehow offered a preview of what may potentially lie ahead in the season 2 of the anime.
Based on the Reddit post, the One Punch-Man universe will likely be under siege caused by attack of The Monster Association. And this view was somehow based on the webcomic presentation of ONE, which first appeared in 2009 created by artist and writer ONE according to TvTropes. Now if the Reddit presentation is correct, then Saitama will surely have a blast in the upcoming "One Punch Man" season follow-up.
And as a means of speculation, it would be safe to assume that a clash between S-class heroes and the Monster Association will likely occur. The label of S-Class heroes was specified to be involved in the battle, for the 17 members of the Monster Association is said to be on a Demon to God disaster level. This would mean that lower-class heroes will surely be of no match.
Now if this potential event would indeed occur, it would be easy to say that Saitama will likely be fighting Psykos of the Monster Association, for he is the leader of the monster group. But there is still no certainty on what may come on the upcoming episodes of "One Punch Man Season 2." Guess we would just have to wait for the anime together with its game app as AnimeNewsNetwork has cited.