>>38638759>Sylveon - revealed 14/2/13>along with its names
I'll admit, I was one of the retards who didn't believe Fairy type. But after the names emerged (long before E3, "Fee" means "Fairy" in Genman, by the way) the fanbase knew (if they wanted to make a big noise at E3, they'd have revealed both together, no? rather than reveal one and spoil E3)
That's the thing you're missing. E3 means the gaming media's focus is split several different directions all at once. Game Freak don't care about that, they want the eyes of the world on them and them alone, which is why E3 has never been a focus of pokémon information reveal. We get tidbits, but anything meaty 'round E3 comes directly from GF/TPC and usually before E3 starts, to get the biggest amount of article space, without the others trying to steal focus.