IPS in general does not give dates for releases. However given that IPB5 is in beta now, it should not be too long. I would expect end of the year or very early next personally. There are three major US holidays (Thanksgiving, Christmas, New Years) coming up and IPS generally (historically) does not do releases around those times as they don't want to deal with big problems during times when they are on reduced staff and trying to celebrate like the rest of us.