1500hrs on a medium jet is not that much different from from the current minimum requirement as it stands (more than 2000hrs on MTOW greater than 20T), when you consider what the company can actually lower the requirements to.
Bear in mind the FCI from almost a year ago which permits ZFT training to be conducted for new entrants with 500 hrs or 100 route sectors on turbo props with a MTOW greater than 10T or with more than 19 seats. This is significantly different from the current requirement of more than 3000hrs on MTOW between 10T and 20T.
I suspect that is where the minimum requirements will be heading in due course.
Plus bear in mind if you do four sectors a day for five days a week then one has accumulated 100 route sectors in just one month!