Does this years exam time table apply to next years students?
Nope, not really except for what shinny said before.  
That's why there was this whole uproar about English and Spesh exam 1 being on the same day this year.  Last year it was English and Drama.
I've heard English and spesh was on the same day for a while. Maybe last year was an exception?
In 2007, English, VET: Furnishing, VET Information Technology and VET: Sport and Recreation were on the same day.
Only in 2006 was English and Spesh were on the same day.  In 2005, it was English and two other VET subjects.
So maybe it was just luck of the draw.  I wouldn't say "...English and spesh was on the same day for a while" though.