It looks like Nintendo does have plans on releasing Pokepark Wii outside of Japan. As of right now, there is only an OFLC listing, but that usually points to good things for both Europe and North America. The localized title, according to the rating, is ‘Pokepark Wii: Pikachu’s Adventure’.
Now here’s the weirder of the two titles. Jack the Ripper, developed by Sanuk…but published by Nintendo. Now this one seems like a game that Nintendo would stay far away from! Somehow it managed a PG rating, so there must be quite a few details about this game that make it a bit more kid-friendly. Thanks to Midnight Scott for the heads up!