There is no official confirmation from Paramount Pictures or any reliable sources about a Gladiator II release in 2024. However, it's known that a sequel to the original Gladiator (2000) film was in development. In 2021, it was reported that Ridley Scott, the director of the first film, would return to helm Gladiator II, with a script written by David Franzoni.
Regarding the 2021 release, I assume you might be referring to a potential re-release or a different version of the original film. If you're looking for high-quality English audio, I recommend checking out the original Gladiator film's Blu-ray or 4K Ultra HD release, which features a high-quality audio mix.
For more information on Gladiator II or the original film's re-release with dual audio in Hindi and English, I recommend keeping an eye on official announcements from Paramount Pictures or reliable entertainment news sources.
The original Gladiator film, released in 2000, was a massive critical and commercial success. It starred Russell Crowe as the titular character, a Roman general who becomes a gladiator and seeks revenge against the corrupt Roman Emperor Commodus. The film won several Academy Awards, including Best Picture and Best Actor for Crowe.