You continue to repeat yourself while you ignore everything we're telling you
In December we'll get a movie title
In early 2013 we'll get a new Pokémon revealed and its name will be added to the title and it'll be the movie's real star
If they'd keep Genesect a secret till then and THEN reveal it like happened with most of secret legendaries, you'd be right
But fact is, they're revealing it EARLY, NOW, which would make it OLD NEWS by 2013, and in early 2013 they'll reveal someone new, which can't be Genesect since they're bothering to reveal it NOW... they have no more secret legendaries of the current gen, so that means the Poké they'll reveal in early 2013 is a gen 6 one and it'll star in the movie together with Genesect (either as equal in importance or most likely as the actual real star...)
This also means September 2013 is probably the start of gen 6
It couldn't be any more obvious and you're just randomly insisting on a random thing for no reason and ignore all things people tell you...