(previews start on Sept. 4; opens on Sept. 10) Last season, Rattlestick Playwrights Theater joined dramatic forces with several West Village theaters to produce Lucy Thurber's "Hill Town" plays. They have decided to take a similar approach again, corralling four theaters to produce "E Pluribus," four plays "celebrating the diversity of America." This first show, created by Theater Mitu, offers a portrait of the border town Ju�rez culled from 200 hours of interviews.