The first two seasons are currently streaming on Crunchyroll
After the English version of the Is It Wrong to Try to Pick Up Girls in a Dungeon? Infinite Combate RPG video game was delayed until "summer," more sad news for the franchise was announced on May 30 as the third season of the DanMachi TV anime has been postponed from its scheduled July broadcast to October due to the impact of the coronavirus (COVID-19) affecting "broadcast and distribution" on the series.
Is It Wrong to Try to Pick Up Girls in a Dungeon? III was announced back in September 2019 alongside an OVA which released on January 29, 2020. A post on the DanMachi website says that the release date will be announced on the website and the Twitter account when it is decided.
Source: Comic Natalie
Daryl Harding is a Japan Correspondent for Crunchyroll News. He also runs a YouTube channel about Japan stuff called TheDoctorDazza, tweets at @DoctorDazza, and posts photos of his travels on Instagram.