Nice info el. Managed to get to the area this morning not helped by multi crashes atm with the new beta release.
I see you have already noted the fishable 'Shipwreck Debris' pools to the west of Angler's Outpost in Krasarang Wilds. The placement does seem a little weird as some are not fishable from land, though there are some floating wooden crates you can fish from. Not sure I have seen anything like that before.
These pools are related to the daily quest 'Scavenger Hunt' (though they will drop 'Rusty Shipwreck Debris' for the quest, not the current loot)
You can currently ride the 'Thresher Shark Ride' shark close to John "Big Hook" Marsock. It has vehicle controls and it quite fun. Presumably one of the daily quests ('Jumping the Shark')
The 'Goblin Fishing Raft' can be seem next to 'Fiznix <Explosive Fisherman> in the water. It did not interact but I will be interested to see how it moves/ is steered etc. and used for fishing. It is also used in the daily quest 'Scavenger Hunt';