With more than a thousand perfs under its dance belt, “Fosse” looks set to close Sept. 1.The revue of Bob Fosse’s choreography opened Jan. 14, 1999, at the Broadhurst Theater and won the Tony Award for best musical that spring. When it shutters in late summer, the production will have played 22 previews and 1,108 performances. Last week, the show grossed $443,606 on its potential of $668,100, playing to 90.70% capacity. ‘Dance’ to follow? The Shuberts’ revival of “The Dance of Death” has been rumored to replace “Fosse” at the Broadhurst, with Ian McKellen and Helen Mirren possibly set to star in Richard Greenberg’s adaptation of the August Strindberg classic. However, Shuberts chairman Gerald Schoenfeld said the legit org was not ready to confirm anything.