I would love to see fishing at my own house ponds... although not sure what types will be put there if they decide to do that, any fish would be nice really, just to see the fish shadow animation in my pond is good enough for me :P
Other places would be in more dungeons and Avalon (which i am sure will come in future updates), excited to see if they will make Knight type of fish to add to my Ninja/Samurai collection of fish :)
I am not sure how lava fishing will work out as that might not be logic idea for KL team... unless you craft/buy special rods for it then that would be a cool idea, cause obviously our rods now will just melt trying xD
well have a few ideas Aquila celestia zafaria and its a big ocean out there but why not the new world (darn forgot the name lol) you have to cross that huge ocean how bout giving us a boat and go deep sea fishing there