This is an unfortunate situation but quite common. "Speedy" means different things to different people. The Bill of Rights gives us the guarantee of a "speedy trial", but does not set a time frame. It is not uncommon that a speedy trial motion has been filed but years later the trial has not been to court.
There is no time frame, until the case is put on the courts calendar, the Government can keep you incarcerated. It may take four or five, or even six years to get the case to court. Obviously, this is not "speedy". About the only thing you can do is request that your lawyer keep filing speedy trial motions.