Now I know what you're thinking and NO, I'm not suggesting bring back the monthly release of adventures like they did before (That method was tried and flopped respectfully). So instead, I thought "Why couldn't adventures be tied to events in SOT".
For example, imagine an event introduces some temporary world changes like the adventures before, like the storm on the map has miraculously changed into a blizzard, removing the violent swaying for reduce mobility and we'd get 1 or 2 or even 3 adventures within the event period to explain why this change has taken place in the lore, say the Dark Brethren or Reapers Bones have been experimenting with some ancient items to create the blizzard and now we have to help the Pirate Lord undo the damage? However, like I said before, these won't be monthly releases like before, instead these adventures will be spread evenly over the event period, for example if an event is 2 weeks, the 1st adventure will be playable on the first week and the the second will be playable on the second week, providing you've don't the first adventure as well. This could be used to progress the story of SOT, this won't replace the subtly world building, but go hand-in-hand with it, like having world building leading up to an adventure arc that'll setup the next season.
We could even reintroduce decision points with this method and we can fight to makes changes occur within SOT again. Or we can repurpose the decision point techniques to add more competitive events. For example, during Fight Night, we could have an adventure that sees us us fighting over the sea forts again, but instead of fighting for a chance to change something, we'll be fighting to get our desired faction in the lead as the faction in the lead will receive a rep boost and maintain it as long as they stay in the lead. And like Lost Sands, you'll actually be able see WHO'S in the lead on these conflicts.
You could even have reoccurring filler adventures, that would give you a basic adventure with big rewards afterwards. This could be used to give us something to do and fill a slot in case a 'story' adventures needs more time to cook.
On the other hand, you could have adventures that tie into seasonal events like festival of the damned, think Fate of the Damned with a new coat of paint. These would be reoccurring adventures that would be playable every year around the same time. An example of a season adventure could relate to the Festival of Giving, like in the adventure itself a shipment of decorations owned by the Pirate Lord has gone missing and you have been tasked with retrieving and delivering them to an outpost of your choice. And at the end of the adventure, the Pirate Lord gifts you a chest with a chance of humble or generous gifts as thank you for your services.
Of course, the real issue with adventures is you can't replay them (yet). Seasonal adventure will have the benefit of being seasonal, but what about story adventures? Well, I'm proposing a new method that'll allow you to replay them with the help of Umbra, on her travels she'll have met other chroniclers who'll set up shop on the other outposts while Umbra remains on Sanctuary Outpost. If you missed an adventure and want to catch up, you can go to one of these chroniclers huts, select an adventure to replay and they'll give you a lantern similar to Belle's lantern that will play ghostly memories of the events that transpired in the adventure you selected. Or you can be given access to the Sea of the Damned to replay these adventures, the Sea of the Damned is a land of memories after all, you could even have it set up so the needed islands are closer together to minimise sailing for these recaps compared to playing them in adventure mode, and cut straight to the point so you can be caught up. Once completed you'll get the item originally rewarded during the adventure, but with a ghostly aura about it similar to ghost chest as well as a different title that's been altered for this variant of the adventure, for example 'Victor of Golden Sands' will be renamed to 'Memory of Golden Sands' or 'Remnant of Golden Sands', this give new players the cool rewards while giving something to those who took place in the original events.
I know I'm just spit balling ideas of how I'd like adventure to come back and they might not come back. But I really liked adventures, even if a lot of people didn't. So tell me what you think, do you think this could be a good way to bring back adventures? What could be changed to make adventures more enjoyable for you? And what adventure would you of liked to see if they were brought back?