I did hear through a couple of Mums that the cut off age was going to be changed to having to have turned 5 by January the year they will start school. As yet I haven't seen anything in print. I believe it was going to happen in 2012 I think. This would mean they would have to give a fair bit of notice as otherwise those kids who would be doing 4yr old kinder 2011 with the intention of starting school the following year and who did no meet the cut off would have to do an extra year Kinder.
If this was the case, they would either have to announce it this year or give those people who didn't meet the criteria for starting school and extra year of funded Kinder through their local Council Kinder you would think.