Subject: Exposition
Author:
Posted on: 2014-05-09 06:01:00 UTC
As far as the PPC is concerned, once something is published/released/whatever, it's a canon. It doesn't matter if it's overridden by later canon, it's still a published work that needs protecting (and thus a Word World which can affect PPC history - so the Mysterious Somebody doesn't retroactively cease to exist). Though combining elements of two contradictory works could be a charge, I guess (maybe even a job for Implausible Crossovers, come to think of it).
As far as Star Wars goes (this isn't just aimed at you, Miah), there have always been "levels" of canonicity in that franchise. The new films shouldn't necessitate a change in PPC procedure.
Bleh. That ended up sounding condescending, but I can't think of any other way to put it. :-/
And, Miah: I think it would reverse influence unless directly contradicted by the original material. Alternatively, there's no cross-influence and the different media constitute separate Word Worlds. Though calling a film a "Word World" is rather counterintuitive. (And the spell-check doesn't recognise 'canonicity' or 'counterintuitive'. Or 'recognise', apparently.)