Nintendo will implement a region lock process for its Wii U hardware, the company has confirmed to CVG. This means that games bought in the US, Europe or Japan will only be accessible for machines built for those regions. Region-locking devices is a longstanding Nintendo policy that has been in place across numerous games consoles including the 3DS, Wii, GameCube, N64, SNES and NES. Platform holders Sony and Microsoft take a different stance to region-locking. Both allow publishers to decide whether they want to lock games to continents, of which in most cases they do not. Sony's latest platform, the PS Vita, is region free. Source - CVG
Well I use a program called NeoGamma on my softmodded Wii to play JP games and it works fine. My Wii is US region. My advice is to just wait for a softbomb or modchip to come out and see if there are any programs like NeoGamma, if it's a problem to anybody.