WEAK HERO CLASS 3

If Season 3 happens, it's going to be a real gang series, where Si-eun and his new friends—along with Suho—take on the Cheongang boss, Geum Seong-je.

But personally, I don't want a third season, since it wrapped up well in Season 2. I also think the school theme won't be a part of Season 3 because of the more serious real gang direction.

An excerpt from Park Ji Hoon's interview: 
When asked about the possibility of Season 3 happening, he responded, "I think Season 3 could be possible if you like Weak Hero Class 2 a lot. But I don't think I can talk about Season 3 just yet." He added, "This is just me thinking, but if Season 3 comes out, I think we can make a coming-of-age story after the characters become high school seniors. It can also be interesting to see high school students coming together and solving cases that involve adults."