• "Demon Slayer" season 4, known as the "Hashira Training Arc," is set to premiere in 2023. This new season will focus on the Demon Slayer Corps' Hashira, or elite swordsmen, as they undergo intensive training to hone their skills and prepare for the ongoing battle against the demonic forces.

• Viewers can watch the new season of "Demon Slayer" through various streaming platforms, including Crunchyroll, Hulu, and Funimation, depending on their location. The article provides information on how to access these platforms and watch the show from anywhere, including using a VPN to bypass regional restrictions.

• The "Hashira Training Arc" is expected to be a highly anticipated storyline for fans of the series, as it delves deeper into the lives and abilities of the Demon Slayer Corps' most skilled members. The article highlights the excitement surrounding this new chapter in the "Demon Slayer" saga and the anticipation for its release.