Unfortunately, PTR hasn't been updated with these new changes yet, so we'll have to wait before we can verify. But I'd be very surprised if it was in every form using Cat Form's AP for the calculations. Worth testing though, I suppose.
edit: New tanking cloak:
[Crimson Paragon's Cover]
Binds when picked up
Back
108 Armor
+61 Stamina
Requires Level 70
Equip: Increases your dodge rating by 28 (1.48% @ L70).
Equip: Increases your expertise rating by 28 (7.1 @ L70).