Looks like the mock tears for Japan were premature last week as some additional releases mean Japan has a 3-2-2 week it turns out. Thanks to Nintendo Life reader Ratengo for noting that the Japanese Shop news item for this week's releases had two additional WiiWare titles that weren't detailed on the nintendo.co.jp WiiWare page until today:
Rikachan Oshare Hausu (Licca-chan Stylish House) is from Takara-Tomy and 1000pts. It seems to be a tie-in product for a veteran dress-up doll that's basically a Japanese version of Barbie. In addition to picking out clothes and shoes for her you can play some mini-games as well. Takara-Tomy seem to have missed a trick by not having a lower initial price point and then attempting to sell the kiddies an endless stream of DLC, but I expect this is just testing the waters.
Unou Kids Okigaru Unou Toreeningu (literally Right Brain Kids Easy Right Brain Training) from IE Institute for 800pts is basically a little kids version of Brain Training and intended to be enjoyed by the whole family. I would think this title has the best chance of making it overseas.
In addition for 200 points you can get Mahoojin to Imeeji Keisan -- also from IE Institute -- an all-ages "math training" program.