Will be a high school musical 4 on DVD?

As of my knowledge cutoff in September 2021, there is no official information about a "High School Musical 4" movie or its release on DVD. The "High School Musical" franchise currently consists of three movies: "High School Musical" (2006), "High School Musical 2" (2007), and "High School Musical 3: Senior Year" (2008).

If a "High School Musical 4" movie is announced or released in the future, information about its availability on DVD or other physical formats will likely be provided by the official sources associated with the movie, such as the production company or distributor. You can stay updated by following the official social media accounts or websites of Disney or the individuals involved in the "High School Musical" franchise.