Reports in the Times of London have Broadway theater magnate James Nederlander set to buy the Aldwych Theatre, which has been the London home of the Royal Shakespeare Company for almost two decades. The RSC is moving to new digs in the spring. As rumors, or rumours as they say over there, circulated of the impending sale, several British groups made offers to buy the theater, among them a consortium headed by "Evita" composer Andrew LLoyd Webber . . .

"How Sharper Than a Serpent's Tooth It Is" Dept.: Back in '71, when creative naming was a big thing among rock stars, the eclectic David Bowie and his wife Angela, or Angie as her intimate friends called her, had a son and they named him Zowie. Now, apparently, the 10-year-old has decided that the name doesn't suit him and he has changed it to Joe Jones . . .

A project that will interest Savoyards: The Brent Walker company in England is filming a version of Gilbert & Sullivan's "The Pirates of Penzance" for television distribution. This production is no relation to the Broadway production and stars Keith Michell as the modern Major General . . . A Brent Walker production that will interest everybody else is "The Return of the Soldier" based on a story by Rebecca West. It stars Julie Christie, Glenda Jackson, Ann-Margret and one very, very lucky man -- Alan Bates. The film should finish shooting in March 1982 . . .

"Man Is Born Free and Everywhere He Is in Chains" Dept.: A mansion outside Paris that once was owned by the author of "The Social Contract," Jean-Jacques Rousseau, was recently purchased by the Hare Krishna sect. As part of the sale agreement, the bald-headed sect members have agreed to wear wigs so they won't frighten the neighbors . . .

Natalie Wood, who drowned last week at age 43, had been preparing to play the Romanov princess in "Anastasia" at the Ahmanson Theater in Los Angeles. The project has been canceled because, according to Robert Fryer, artistic director of the theater, it would be "too painful" to use another actress.