As I was told with my previous correspondences with them, your assesment date is the 1 year anniversary of your interview. Mine was in mid-February 2012. If you are not offered firm employement within that time, yet get to come back to Dubai for an additional, all expense paid 4 days of fun - another assessment.
Hopefully, and I plan on finding this out in the next few days, they will take mercy on me and others like me and waive the reassessment. I don't know how they are going to treat me either that I'm unemployed, so we'll find out.
I'm also a little miffed that they have had us all hanging here in this pool and they are conducting interviews again! Anyway, we'll see what happens and I'll let you all know.