I also thought that fishing is gonna be in. Why not make fishing spots in rivers and ponds marked by swimming fish or bubble ripples that work the same way as conainers, and from which you can randomly get a fish, loot (like old boot, bag of coins etc) or nothing?
I was excited when I saw the fishing rods and then disappointed when I realized it couldn't be used for fishing. As the game already has cooking recipes which provide temporary buffs, it makes sense that players would be able to equip a fishing rod and catch fish as part of this system.
I'm still hoping it makes it into the game, but as others have pointed out there's not much development time left and lots left to do.