The British theatre practice was not optimistic in the eyes of some critics and audiences.During a time of financial decline and lack of innovation,the theatre industry not only struggled with funding but also faced the criticism of repeating itself.This article has roughly divided new mainstream theatre productions in 2023 into three categories:new original plays,adaptation,and revival.By examining the elements of'new'and'old'and their fluidity,this article intends to discuss the thematic tendencies and commercial and artistic strategies of British theatre today.