Since Forever is the time to right all sorts of historic wrongs, Blizzard has to give Druids the ability to fish in bear/cat/seal form. You want to tell me Druids can gather herbs with no opposable thumbs in their forms, but can't fish? The most natural thing for animals to do? Makes no sense. Sure, they'll need to rework the mechanics of casting, but that's why they get paid the big bucks. They can figure it out.

As evidence for why Druids should be able to fish, I give you:

Exhibit A - Bear:


Exhibit B - Cat:


Exhibit 3 - Seal: