For the uninformed, the limited edition controller is designed for the upcoming fighting game. As a result, the left and right analog sticks have been removed while the ZL and ZR buttons have been moved to different places.
The product can only be used as a second controller for Pokken Tournament. Thus, you will still need the Wii U GamePad for local multiplayer in the fighting game.
Even with the potential delay, the controller should still come out in time for the launch of the videogame, which is currently slated to come out for the Nintendo Wii U during the second quarter of 2016.
The software product is a collaboration between Nintendo and Namco where the most popular pocket monsters fight it out in flashy battles. If you want to replicate the arcade experience in terms of multiplayer battle, you should pick up the Hori Pokken Tournament Pro Pad Limited Edition Wii U Controller as well.