Looking at this from a Feral point of view.

Buffs:
Barkskin not dispellable = nice.
Berserk not a fear break/immunity = incredibly shitty
Bloodlust/Heroism = boost, via nerfing the opposition.
Mount Up = bug fix.
Ring of Frost = slight nerf to the most annoying caster to play against.
Shadowmeld in a shapeshift form = decent.

Mixed feelings on these; Berserk providing fear immunity/break was huge, but ferals are already immune to polymorph and virtually immune to all stuns/snares via power shifting. With diminishing returns, trinket the first fear, and IWT + Feral Charge (at 25 yards) it doesn't break the composition. The nerf to mages is very welcome, and removal of heroism/bloodlust is a larger loss to those compositions and thus a larger relative gain going against them.



Damage:
Mangle Cat 360% > 460% = 78% relative increase.
Shred 350% > 450% = 77% relative increase.
Rake/Rip -10% = bleed nerf, and bleeds (dots) ignore armor.

Moving the damage away from the bleeds and towards straight physical damage. Aside from the Ravage opener from stealth (or after a Feral Charge), burst will definitely increase. More of a PvE raid loss, although with Mastery tied directly to bleeds, it might not be much of an issue as gear progresses.



Glyphs:
Regrowth is interesting, if the Berserk change goes through; Berserk was never a DPS increase via glyph because by the last five seconds, energy was gone; it was taken for increased fear immunity.
I'm already not using Thorns nearly as often as I thought, so might need to take a hard look at glyphs again.