Apparently it is down to a misunderstanding by the service providers who produce the charts. Because the minima is based on a continuous descent profile, they call the minima (under the new rules) a DA even though it is a non precision approach. For a non precision approach (under the new rules)you will still be unable to pass below the minima regardless of whether it is a MDA or DA; hence the requirement to add an amount appropriate to your aircraft (nominally 50')
Essentially nothing will change in that currently just add 50' to all minima for non precision approaches (currently only MDA), after the change, just add 50' to all non precision approaches (either MDA or DA).
The important point is to make sure that you are using the correct minima (either JAR-OPS or EU-OPS) dependant on what your operator is currently approved to use. There are no DA minima for JAR-OPS approaches so if your operator has not changed and you have a minima shown as a DA for a non precision approach then you are using the wrong minima.