According to MyAnimeList it got renewed for a second season set to air next year! https://myanimelist.net/anime/34134/One_Punch_Man_2
It was confirmed a couple of days ago at a convention or something I guess :3
I've never watched it - I've heard it's good but the main character's artwork... I just don't get it. So I don't know if I'll like or get the anime itself if I'm confused why he's drawn the way he is while the rest of the cast doesn't seem to have that appearance xD;
I'm wondering if it's not like My Love Story though - I don't get the main character's artwork for that either but I keep getting recommended it for the content and it sounds amazing. :3