I doubt it will be much, but the big factors will be your driving record, insurance company, and the years between the bikes.
my '03 bike is $21 a month for PLPD, $39 for Full Coverage, a '09 would be $36 PLPD and $63 for Full Coverage. I am 26yrs old and have no tickets.
So it is about 70% more for coverage, atleast through my insuance it is.