If you are planning on picking up the digital version of Yakuza Kiwami, you might want to look at pre-ordering it for $29.99/£29.99 if you care about PlayStation 4 themes. If you pre-order the game right now you will get a Yakuza Kiwami digital pre-order theme that features both Kazuma Kiryu and Akira Nishikiyama.
I personally recommend all users get the day one steel book edition of Yakuza Kiwami, since its the same price as the digital and you get a cool limited edition case. But, if you are the type of person that hates having physical games, having a cool free theme is a nice extra. Yakuza Kiwami comes out on August 29, 2017; only on PlayStation 4.