Not sure if this means anything but the Intro theme for Pokemon Ultra Sun and Ultra Moon heard in the direct (during Masuda's speech) sounds like a remix of the Pokemon X and Y intro
https://youtu.be/EMHLx8G1_G4?t=366Specially the first few seconds where it has that growing intro before the actual theme starts (intro of a intro i know). Even the instruments used in Ultra SM sound similar to XY's
Here's the XY one
https://www.youtube.com/watch?v=gWTZbEbv2gsThe SM version doesnt have that at all
https://www.youtube.com/watch?v=QvKtHflrQdI 