Update: The Wii U is NOT getting the Battle Edition. Warner Bros. sent out an update email, apparently.
From the WB press release:
"Warner Bros. Interactive Entertainment and DC Entertainment today revealed details for the Injustice: Gods Among Us Battle Edition. The package will be available in limited quantities at Gamestop and EB Games stores located in the United States and Canada for Xbox 360® video game and entertainment system from Microsoft and PlayStation®3 computer entertainment system. Injustice: Gods Among Us Battle Edition is also confirmed to be available in North America beginning April 16 for Xbox 360, PS3 and the Wii U™ system from Nintendo."
The price will be $149 for the Battle Edition, but no word on who makes the fightstick or what components it will use. Elsewhere in the press release it is described as being "lightweight" with adjustable button illumination. Sounds a little chintzy, as a good fightstick should be weighty, not light, but I'll withhold judgement until more details emerge.