I'm very curious about the statement that fishing will not affect the economy. I don't see how that statement can be entirely accurate without precluding the use of caught fish in crafting; otherwise, they would be ingredients in sellable products. I assumed that I would need some fishing levels to support my alchemy so I am very eager to see how this plays out.
The big driver for fish in 1.0 was fish->alchemy->crystals. That seems to have been removed.
In the leaked/redacted recipe data, I didn't see much use for fish in Alchemy. There's shark and fish oil which crafters will need, but alchemy seems to rely mostly on botany and monster drops.
All the old fish->food recipes are still there (and I didn't see much change with the leak), and with the 3% exp bonus, I expect food will be in higher demand earlier in the game, instead of just saving the food for end content.
I am curious if fishing will reward crystals. Crystal gathering will be as important as material gathering now.