I absolutely hate WM, and feel they should have taken the job down some other path. Yoshi explicitly stated MCH and BRD would have a different feel, yet they're really two sides of the same coin because of WM adding cast times. If we keep WM, I'd want just two changes:
1.) A way to spread my dots bane-style. Call it Iron Reign or something to compliment Iron Jaws.
2.) Empyreal arrow to have no cast time. It should be instant like Sidewinder, gauss round and Ricochet(mch abilities that are the closest equivalent, and insta-cast like oGCD)