There are lots of rumours floating around suggesting that the SSPX has already rejected the five conditions, including a Reuters report and a few others.
But none of them seem credible as final statements at this stage.
Most of the reports seem to be based on Bishop Fellay's comments from last week. A more recent set of comments from Bishop Williamson is reported on Rorate Caeli, but again, he is not Bishop Fellay!
So keep praying I think.