Yes! Rayquaza makes its debut in the Hoenn Region just as I hoped back in Episode 8! And in space!
Mini celebration aside, we get a final glimpse of the goings on in the Hoenn Region in Episode 9 before moving on to the Sinnoh Region in Episode 10, but no Pokemon from that Region show up for now. I guess the theme for that episode was chosen because Halloween is today (even though the episodes aired last Friday, but who cares eh?).