While I don't like bringing attention to information gleaned from dats, Fishing will still have an economic impact in the game.

http://xivdb.com/?search/!filters/1/...9ST1JBU0M6Ig==

I know this isn't the exact problem people are having with fishing, but even if the mechanics are made a little simpler, there is still at least a reason other than "personal achievement" that fishing will remain relevant.

Edit: Moonkeepr beat me to it, didn't scroll back far enough.