Will there be other playwrights and poets in Tennessee Williams' genre?

Tennessee Williams, born Thomas Lanier Williams on March 26, 1911, has been categorized as a "southern gothic" playwright, but "A Streetcar Named Desire", in particular, strikes me as being a lament of the decline of a romantic/aristocratic Southern tradition, and its replacement by a less gracious and often meaner modern culture as personified in Stanley Kowalski, a role that Marlon Brando seems to have permanently put his own stamp on whatever actor may perform it and made me see Brando as "Stanley Kowalski" every time I saw his picture. Surely his historical and social perspective-- a perspective stemming from his life in the "New South" (the South that emerged after the Civil War), a modern South that slowly strangled the Old South's lingering folkways, mores and ideals to death after the quick execution of the Plantation economy in the Civil War-- transcends any mere literary categorization such as "romantic", "Gothic", etc. As even the so-called "New South", the segregated, industrializing South in which Williams grew up, has become a discredited and embarring concept to people growing up after the Civil Rights era. Sadly, Williams is so old-hat now that his appeal seems to be nostalgic, a condition that he surely would have deplored. I remember him saying on TV before his death that he expected to write more plays that would lead to a resurgence of interest in his work, but I think his day has ped permanently. What do you think?