The U.S. release date has been listed for the Hori Real Arcade Pro 4 Kai. The PlayStation 4 and PlayStation 3 fighting stick is coming out on the 2nd of March. You can preorder the cross-platform accessory with this link on Amazon. Check out some photos of the stick below this paragraph. 
For the uninformed, the Hori Real Arcade Pro 4 Kai is officially licensed by Sony Computer Entertainment America. It is made using the same Hayabusa stick and Kuro buttons found in the previous versions. These parts were created based on fan feedback for accuracy, durability and response time.
For the revision, Hori added more space below the above-mentioned stick and buttons to improve wrist comfort during gameplay. It also has control configurations, PS4/PS3 toggle switch, share button, touch pad in addition to a side panel with multiple Turbo settings. Last but not least, the product comes with a compartment to store the cable in addition to a handle, making transportation of the Real Arcade Pro 4 Kai much easier.
The PlayStation 4 is getting a few fighting games in the future with the releases of Dead or Alive 5: Last Round, Dragon Ball Xenoverse, Mortal Kombat X along with already-released games like Guilty Gear Xrd Sign. If you are looking for an arcade stick for the current-gen console, make sure you check out the latest product from Hori.