Kate del Castillo will reprise her role as Teresa Mendoza in the fourth season of the telenovela "La Reina del Sur" on Telemundo [1].

The return of the hit franchise signals a strategic move by NBCUniversal’s Spanish-language network to secure high-viewership content. By leveraging a proven brand, the network aims to maintain audience engagement during a competitive programming cycle.

Telemundo announced the production of the fourth season [1] in 2026 [1]. The new episodes are scheduled as part of the network's 2026-27 programming slate [2]. While some reports suggest the season will return next year, other industry data places the premiere within the 2026-27 television window [2].

This programming push comes as the network prepares for a significant summer period. The network is bolstering its slate with established franchises to complement its upcoming World Cup programming push [1]. The decision to bring back the character of Teresa Mendoza allows the network to anchor its schedule with a known quantity that appeals to a broad demographic across the U.S. and Latin America.

The series has historically served as a cornerstone for Telemundo, blending crime drama with complex character studies. The fourth season will see the return of the lead actress to a role that has defined much of the network's high-end dramatic output over the last decade.

Production details for the new season remain focused on the return of the central protagonist. The network has not yet released a specific premiere date, but the project remains a primary pillar of the 2026-27 upfront strategy [2].

Kate del Castillo will reprise her role as Teresa Mendoza

The revival of 'La Reina del Sur' demonstrates a broader industry trend toward 'franchise safety' in linear television. By pairing a reliable hit with major sporting events like the World Cup, Telemundo is mitigating the risk of audience fragmentation and ensuring a stable ratings floor for the 2026-27 season.