I would like to see Bear and Bull redone. I never saw a build that uses them. Falcon could use something as well.
There was also some posting of phys cadence builds with mirror in this thread. I think the archetype needs some more love. Killing stuff with DW physical melee is not much fun. It is slower. And the build is not invincible in any ways. Even if you have mirror up 2/3 of the time, you are not a god. I have finished playing MC with it and now move to SR. I will post the results.