The fallout of the Tony Awards nominations continued Wednesday, when best play nominee “Time Stands Still,” long rumored to be eyeing a commercial run, pulled the trigger on an open-ended engagement that will start in the fall.Move came hot on the heels of the closing notice posted for “Enron,” the big-budget Brit import that has struggled to attract auds and didn’t make the cut for the top play trophy. The Manhattan Theater Club production of Donald Margulies’ “Time Stands Still” played a limited engagement this spring at MTC’s Friedman Theater. Laura Linney, nommed for a lead actress Tony for her perf in the production, appeared in the show alongside Brian d’Arcy James, Eric Bogosian and Alicia Silverstone. Linney, James and Bogosian will return for the commercial transfer. The role played by Silverstone, who won’t be back due to prior commitments, will be recast. Well-reviewed play centers on a photographer (Linney) and a journalist (James) recently returned to New York from the war zones they have made a career of covering. Daniel Sullivan helms. Show was said to draw a steady stream of theatergoers during its stint at MTC, and the commercial producers attached to the project — Nelle Nugent and Wendy Federman — were said to be considering a transfer. Return engagement, beginning Sept. 23 at a Shubert theater to be announced, will be produced by Manhattan Theater Club Prods. (the separate, for-profit producing arm of MTC) along with Nugent, Federman, Bud Martin and Ted Snowden. “Enron” — a big British import that, like “Coram Boy” in 2007, failed to connect Stateside — will shutter Sunday, likely repping a total loss of the show’s approximately $3.6 million capitalization costs. An extra perf that day has been added to accomodate last-minute biz.