It will have to, unless there are even fewer consensus '00s songs than there are '90s. At that point, one must concede that popular music, and the way it has been presented on radio for the 18-34 audience, underwent a fundamental change beginning in the '90s that makes it unsustainable going forward. Look then for classic hits to begin its decline as a viable format, replaced by ... who the heck knows! In New York, it would probably be another variant of rhythmic, urban or Latino pop, following the demographic trend in the market.
https://2k1radio.com/
Right now there is a group that is attempting to create a classic hits outlet with 2000's songs. However we will need to wait for the rest of the 2020's to see if this is going to work out.