I think it would be more accurate to say they should be in compliance with the emissions limits agreed on in the consent decree, which are not necessarily the same emissions levels to which the cars were originally certified.
Appendix B, Section 3.1.2
The updated emissions limits are also in the Emissions Modification Disclosure supplements that discuss the fix and the extended warranty.
If the occurrence of re-gens does increase post fix, I would agree that this will probably have a negative affect on the life of the DPF. This is probably also why the Extended Emissions Warranty is for at least the "Full Useful Life" of the car (i.e. 11 years or 162k miles for GEN 3, 10 years and 6 months or 126k miles for GEN 1 w/ manual transmission, 10 years or 120k miles for GEN 1 w/ auto - funny they get less than the manual).
Appendix B (above) provides the following definition: “Full Useful Life” or “FUL” means the regulatory period in years or miles for which vehicles must meet emission standards. Full Useful Life is 10 years or 120,000 miles, whichever occurs first, for Model Year 2009-2014 2.0 Liter Subject Vehicles and 15 years or 150,000 miles, whichever occurs first, for Model Year 2015 2.0 Liter Subject Vehicles.