That's just a little PvE in my macros :) . In my experience, targets don't actually fade away until half a second after you gain the full Invisibility buff. As such, all my offensive macros have "/cancelaura Invisibility", so I can make a decent attempt at starting my next cast as soon as I'm sure my threat is 0.
um...i'd suggest adding paladin interupts...there are 2: Repentance and Hammer of Justice. Dunno why these were omitted. Also maim's a viable druid interupt. I usually put up a couple of combo points on my focus in order to use it.
And BTW feral druids usually go bear if it's a healer + rogue match with rogue on you. in this case, interupting the healer is very usefull.