The BBC Persian service has a lengthy piece about Kian.  A translation is available here at the ICGA blog.  The article repeats the suggestion that Kian will be released on bail, but gives no further information about when that will occur:

State television of Iran quoted Hassan Hadad, prosecutor for the national security court in Tehran, reported that the investigation of the special court into Mr. Tajbakhsh is ongoing, and that after completion of the investigation, he will be released on bail.

The article also mentions the state television ”documentary” in which Kian was forced to appear.  However, it neglects to point out that Kian and Haleh were filmed in prison and under duress, and that any accounts given of their activities in the extensively edited propaganda film cannot be taken at face value.