International school to local primary one

Dear all,
If now I applied an international kindergarten to my son (now he is studying in K2 in local kindergarten) , that mean in sept-2009, he will study in K3 in international kindergarten . ( the reason I apply internaional school to him now is because I want to set up a safety net to my son in case he failed in all DSS/private school when he apply K3 next yr)
And then I applied the private/DSS school in the Sept,2009, will the DSS or private school think that my son has already chosen international school line and decrease his chance to get admission?
Can anyone help to sove my problem?
thanks