It could have the Arkham style gameplay, they could make him use pistols and lethal batarangs, and in your Batmobile when you hit a thug they actually die. Also sometimes thugs will die if you use fists. He could kill his rouges as well, since it wouldn't affect the main Arkhamverse in any way.
They could also just recycle this suit with a few tweaks...Like making him Thomas Wayne instead of Bruce Wayne just wearing the suit.