It is the restyled models of next model-year that get the next name, I suppose? (2016 models)
Or is it already for some 2015 models?
Anyway when there are visible changes, it is easy.
When there are no visible changes but the year is sure, we can also call these DS.
And when we have no idea if they are older or newer, it is better to list them as Citroën, as we list them as the lowest possible model year.