About petitions working or not:
http://www.destructoid.com/guilty-gear-xrd-sign-may-get-a-wii-u-release-256741.phtml
About direct x 11... c'mom, if make sense bussiness wise they will make, even if its for iOS. Its not about the technology, only about the sells. If you really want the game to come, do this: buy a wiiu, pre-order deus ex human revolution for wiiu, convince a truckload of people to do the same.
"Hardware design isn’t about making the most powerful thing you can.
Today most hardware design is left to other companies, but when you make hardware without taking into account the needs of the eventual software developers, you end up with bloated hardware full of pointless excess. From the outset one must consider design from both a hardware and software perspective."
Gunpei Yoko
