Batman: Arkham City Armored Edition - Wii U Walkthrough - Chapter 13 - Freeze's Suit - YouTube
I've been thinking and recently noticed that the armored suit in Arkham Asylum has an unbearable resemblance to Arkham Knights suit. Maybe the armored suit was a prototype or early design. :
Arkham Asylum armored batsuit skin mod at Batman: Arkham Asylum Nexus - Mods and Community
More 'Batman: Arkham Asylum' Action Figures on the Way from Square Enix
Arkham Asylum armored batsuit skin mod at Batman: Arkham Asylum Nexus - Mods and Community
BATMAN: ARKHAM CITY ARMORED EDITION – WHAT'S NEW FOR Wii U | Comic Book Video Games
Batman Arkham Asylum Batman Armored 6" Action Figure - Walmart.com