I think blizzard should move away from these “hard” specs and more to something closer to classic talents. And maybe add something similar to retail talents that unlock the deeper into the talent tree u get.
They could easily fit in offensive and defensive talents into an enh tree. Then use items to bridge the gap between enh and dedicated tank spec.
Bring back weapon enhancements, rock biter for increased threat, windfury actually hitting hard again. Etc.