Actually, if you own a Japanese 3DS, it's already here. Its name is Pushmo: Hippa Land, by the way, and it looks completely and awesomely adorable--or completely and adorably awesome, if that's how you prefer to butter your bread.
Don't believe me when I say this eShop game looks both awesome and adorable (as well as, er, complete)? Check out the trailer below (or here, if the video's borked).
For anyone who is left a bit confused by that two-minute-and-forty-eight-second slice of heaven, the gist of what sets this Pushmo apart from its three predecessors is that it features four distinct worlds.
One features puzzles that are typical of the series, one features puzzles that look like objects (such as the Tower of Pisa), one features puzzles teaming with enemies and one features puzzles that are inspired by classic Famicom (NES) games.
Oh, and you control a different Pushmo character in each world, although I'm sad to say I don't know enough about the series to know anyone other than Mallo.
Twenty-eight puzzles are offered up for free (seven from each world), but after that you have to hand over 500 yen for the 100 remaining regular puzzles and 300 yen each (900 yen total) for the rest of the other worlds' puzzles (50 per world, or 150 in all).
That comes to 1,400 yen for the whole enchilada--if you buy them separately. Those who know what's up will take Nintendo up on its offer to pay 1,000 yen (just under $10) to nab all of them at once.
Considering the original Pushmo and its two follow-ups, Crashmo and Pushmo World, eventually were released outside of Japan, I have to imagine the same will be true of Hippa Land. Here's hoping it doesn't take too for Nintendo to make that happen.