A production of “Othello” starring Philip Seymour Hoffman, a new play by Suzan-Lori Parks and a trilogy by Tarell Alvin McCraney are on the 2009-10 slate at Off Broadway’s Public Theater.

Season, which also includes outings by solo performer Mike Daisey and a new work from avant-garde scribe-helmer Richard Foreman, sees the Off Broadway theater co-producing or co-presenting shows with orgs including McCarter Theater, an arts fest in Vienna and Foreman’s Ontological-Hysteric Theater. (Such group endeavors, increasingly common among nonprofits, help mitigate producing costs.)

Helmed by Peter Sellars, “Othello” stars Hoffman as Iago and John Ortiz as the title character. Production will bow next month at Austria’s Wiener Festwochen, which presents the Gotham run in association with the Public and the LAByrinth Theater Company, of which Ortiz and Hoffman are co-artistic directors.

Euro event K15 Festival also is on the list of presenters along with NYU’s Skirball Center, where the Gotham run of “Othello” will play for 23 perfs starting in September. Saidah Arrika Ekulona (“Ruined”) appears in the Vienna incarnation but has not been confirmed for the Gotham staging.

Willem Dafoe stars in “Idiot Savant,” the latest surreal outing written and directed by downtown fixture Foreman. Billed as a philosophical comedy, the show begins its fall run in October.

Also beginning that month is McCraney’s trilogy of plays about an extended family in the bayou, “The Brother/Sister Plays Part 1 and Part 2.” Tina Landau helms the first part, “In the Red and Brown Water,” with Robert O’Hara directing the second part, which consists of two plays, “The Brothers Size” (previously seen at the Public as part of the Under the Radar fest) and “Marcus; or The Secret of Sweet.”

Plays, co-presented with N.J. regional McCarter, will run in rep at the Public, with marathon days of both shows among the viewing options.

In December Daisey performs his new monologue, “The Last Cargo Cult,” which examines the current American financial situation through the lens of a U.S.-worshipping religion on a South Pacific island. Frequent collaborator Jean-Michele Gregory directs.

In March, James Macdonald (“Drunk Enough to Say I Love You?”) directs the new play by Parks, “Snake,” about a young man who returns home to Texas to confront his father. Parks has been affiliated with the Public for the past season as its master writer.

The Public’s 2009-10 lineup also will include outings of the developmental series New Work Now! and Public LAB, as well as the Under the Radar fest.