Since I’ve heard it said that GB may try new trees for existing characters rather than new characters, I thought of this.
Not a jetpack, since flying would probably break the game, but a way to keep Zane airborne by hovering him above the ground and allowing for a huge speed boost, essentially sprinting speed while strafing. Can also maybe turn crouch/slide into a quick boost/dodge move, and allow for a second midair jump.
Tbh I would love it. Would also make the “while airborne” anointment less useless because Zane would be regarded as airborne while the skill is active.