It would only be doable as an event, as the world is already explored its already been generated so its not possible to “add temples”.
This isn’t the first time this has been requested.
We have been creating custom mobs (Aka halloween) so we could explore replacing or adding a custom mob that is hostile in waters, maybe an edited guardian (So they spawn more often)
If we do get a Kraken maybe it could spawn in a ruined underwater city (like Atlantis) with loots? The city could be made of blocks like diorite, prismarine, sea lanterns, flowstone e.t.c ?
Yeah it would work great for a hardcore ship oriented world since it only generates islands and each island is a different biome so the economy would be automatically created with supply and demand for different things
~High (#420) Admiral of the BE Navy and retired News Anchor of the Piratecraft Survival Server~