Marseilles Moving Forward?

What comprises the Marseilles? Defines and differentiates it from its progeny (RWS, Thoth, etc.)? And what are the parameters which it can be said to move (have moved?) forward, up to current times.

Maybe not really parameters, but more on grounds? Justifications of moving forward?

It is more basic and less dogmatic than its progeny. The RWS, for example. is based on the earlier decks, but it is heavily influenced by the occult movements of the late 19th and early 20th century. The Marseille is, however, adaptable to an esoteric interpretative bias should one wish to go that route.

I find it to be no less appropriate for today than the RWS, which also employs imagery of an earlier era. The archetypes represented by the Marseille (and RWS) trumps are timeless.