If the news comes out that there's been a debt restructure, and no PR's have been issued before that, my expectation is that there's a BO, and it's just waiting till Aug to be announced.
My reasoning is that PTX needs leverage, why would a bank restructure the debt? If the PPS remains the same, the only leverage behind the scenes is a definite BO. But if PR's do come out, and raise the PPS, and then the news of a restructure, then a BO isn't as likely (though I think still pretty likely)