In an article at Variety talking about how Steven Spielberg still wants to make his Abraham Lincoln biopic now that Robert Redford is starting The Conspirator, the trade mentions who may be Spielberg’s choice to topline his Harvey remake:
Spielberg is presently focusing on his “reimagining” of “Harvey,” with Robert Downey Jr. possibly playing the man who sees an invisible rabbit.
Regarding the two Lincoln films, Redford’s movie focuses on a young woman charged with conspiring to kill Lincoln, while Spielberg’s project will focus on the president’s anguish over the length and toll of the Civil War.