I do believe it was said, not written. of course could i be wrong, but extrapolating from the slow progress CCP makes, it looks to me like that’s the way they’re going. I don’t see how skins for stations have much to do with that, because they’re not that much of work in comparison to paying people to write all this text down for no tangible benefit.
Considering how many Citadels are out there, removing npc stations eventually just makes sense. the Drifters will likely take care of that, or maybe someone else will. features inside a station, like mission agents, will of course be made new for Citadels as well.
Citadels were born out of the need for replacing POS. the problem was old code. changing the really old code is less efficient than introducing new stuff with new code which does the same things. Thus we now have citadels and all these new structures, eventually replacing POS completely. they phase out the old outposts as well, in a weird way I guess, but they still do.
Stations suffer from old code as well, and Citadels can take the job of stations, thus it’s just natural to assume that the fancy looking Citadels will eventually fully replace old stations (of which some look quite good, i admit).
maybe it’s not happening at all, or not happening within 5 years, but no matter what: sitting down a bunch of devs spending time creating an encyclopedia with text and images absolutely most people won’t ever read, compared to having them work on the actual game … i know which i’d prefer.
Maybe you should just do it the open source way? start it yourself to the best of your knowledge, put it into the public and hope others will jump in and help?
A browser for stations, though, like exists for ships already… yeah, you’d have my vote for that one. much less effort. 
i guess i wasn’t clear enough about what i think. sorry about that.
