
Not quite. Pap smears aren't going anywhere for a long time. Even if HPV carriage rates decrease and so do HPV related illnesses, there is very little chance of a significant decrease in #s of pap smears performed. This is not a magic bullet that is going to wipe out cervical neoplasia - as said it only applies to those who have not yet been exposed, and it will be many years before the current population ages enough to make this relevant (presuming, of course, that the vaccine is 100% effective, which it will not be).
Perhaps, 20-30 years in the future, there will be a decrease in income as a result, but pap smears are a pretty small amount of income as it is anyway, and cervical biopsies are common but certainly not a huge proportion of specimens.