Stampede in current state is just usuless - no argument here, it just need to be once again redisgned or just removed.
Silencing.. well leaving it as a talent was also pointless, i guess best way is making it basic for all specs, but blizzard seems to disagree(other option is slight redisgn of Intimidation so it will interupt AND stun).
Pets need some redisgn mostly for AI but they are also just buggy.
Readiness - it is a nerf for already weak class (dps wise) - i don't say its bad change but hunters need some buff to compensate.
Specs // raid utility - its tricky one, but i am personally willing to take a risk, and hope for really big redisgn of ours specs/talents.. well everything. But its to big to be done midpatch. Like many already suggested our specs are now (i'm talking about pve rotation only) ~10 exactly same skills, 2-3 skills that do same thing with different name/animation and maybe 1-2 really unique, but often insignificant, skills per spec.
So in conclusion i'm waiting for some sort of declaration from blizzard, that we will see huge changes in hunter specs in next expansion, and that it will be something that we will trully be able to call redisgn.