My trainer card got updated, so I guess the only remaining tasks for me are... collecting the Pokemon Musicals props and beating the Battle Subway.
The in-game GameFreak building in Castelia does have that guy that rewards you for completing the Pokedex, by giving you that certificate. At first I thought it was only for the Unova Dex, but since I never collected that certificate before, I had to leave and re-enter to get the certificate for the National Dex as well. Nice!
So yeah, that's it for now. Bring on more new Pokemon!!