Welp, they gave us next to nothing. It's gonna be a long ~10 months ahead...
The most interesting thing to me is the RBY compatibility (and RBY's lack of Gen 6 compatibility). To me this hints the .pkm files are in a Gen 7 format, thus being incompatible with Gen 6 (otherwise they'd have let us transfer to Gen 6, or just not let us transfer altogether). Perhaps, then, someone could crack the 3DS RBY game files soon enough and reveal a host of new abilities or new mechanics hidden there that are making the transfer straight to Gen 7 possible.
You know, the whole Bank thing then is getting pretty complex haha. I hope Gen 7 manages to unify all pkm files into a format that somehow can keep being used from now on (or at least for the next few gens).