Sakura Wars preorder bonus in the works

Thank you for contacting RosenQueen. For Sakura Wars, we are scheduled to have preorders begin in July. At RosenQueen we will have a special bonus item, however, at the moment we cannot disclose what it is. We truly apologize for any inconveniences. - RosenQueen company rep

I know nothing about the Sakura Wars franchise, but you guys do! What would make for a must-have preorder bonus? Thanks to Shynra for the heads up!