according to my SSGT it depends strictly on what your MOS is. My MOS is paperpusher so chances are I won't see much (if any) time in Iraq but if you are a grunt then its either now or later. His information made no distinction between reserve or "full time" so either way it is now or later
If you don't make your own decisions someone else will.
If you don't make yourself happy... no one else will.
If you want to make God laugh just tell him your plans!