Kraken or sea mob/weapons

[Weenie the Poo]

I was thinking maybe they can add a harder mob sort of a boss like a Kraken in which it may spawn later in your game time like after a certain x amount of days, like for example in 7 days to die when a horde would spawn after 7 days.
The Kraken I feel however shouldn't spawn on a set day and should maybe after like 20 days it might spawn or it might not or it could show up some time after you find the (SPOILER SORT OF) rig sort of thing and should have hints as to how the people who were there had left showing stuff about the Kraken or something attacking the area.

Some thoughts on weapons are like a harpoon gun maybe or just harpoons. A gun maybe in which you have to find the blueprint at the rig or something. My friend and I may have other thoughts as we play along more and may add more discussions or edit this one. THANK YOU FOR YOUR TIME!