Noooo, not jump the shark!
I seriously hate fishing. Always. Any game.
Lots of games do fishing well, for those who enjoy it. Just like lots of games do pvp really well. For now, Project: Gorgon doesn't need to get all fishy any more than it needs to develop pvp. Some things shouldn't be complicated! I like that I just jump in and grab the fish. Simply looting the fish is fine. And I like the passive ice fishing traps that we have.
Your ideas are good ones--but since there are limited development resources, there are things far more interesting and important than fishing that need work, from my perspective. For example, the focus of getting ready for steam. And fleshing out the already existing ideas. The game has been in development a long time--it would be great if we could see some of the things the developer has in mind.
The minute a game introduces serious fishing....it's a classic "jump the shark" move:
https://www.youtube.com/watch?v=MpraJYnbVtE