September 12th Update
Credits to
Leaked Cards
Game Mats
Icons
Go Rush!! World Countdown Bonus & New Homescreen UI
Konami also added more full-art character assets, including alternative ones (such as the Jaden and Yusei seen below) for each main character, likely to be used in the new homescreen UI.
Keep in mind that the datamined information is speculation, and remains unconfirmed until officially announced by Konami