Right now, I'm feeling concerned and wondering what is going on in regards to Sublinks here, since I have created a community for discussion on koalas about a week ago on here and have started and been doing work on it recently. But now I'm hearing about Sublinks and feeling concerned if I created it on the wrong instance or the wrong platform since I'm now just recently hearing about it. I'm just feeling worried and wondering whether or not if I should do anything or not.
I don't think there is anything to be concerned about.
Sublinks will live alongside Lemmy, just like kbin does today. Some Lemmy instances might switch to it under the hood at some point, but as a user you probably woudn't even notice the change. All the data would be preserved, so your community would still be there unchanged.
It is basically Lemmy written in a different programming language, with more focus on moderation tools afaik. So for users it looks and works just like any other Lemmy instance does, and it's part of the same Threadi-/Fediverse.
That's not entirely true. The default UI for Sublinks is being developed to be dramatically different than the default UI for Lemmy. It's unclear if the Lemmy UI will be made available by lemmy.world if they change to Sublinks. Its also unclear if lemmy.world will simply redirect to sublinks.world.
It's also unclear if lemmy.world will use sublinks as sublinks currently doesn't exist in a form that's usable for lemmy.world. And it may turn out that what is built doesn't work as intended and lemmy.world will continue to use lemmy indefinitely.
It's planned to be 100% API compatible with Lemmy, so you'd be able to use any Lemmy-UI with it. IDK why LW or any other instance would change their default UI.
A lot of things are not final and may change, but let's just start with their stated goals, instead of speculating about all the things that could theoretically happen.
Which is nice for an instance admin, but someone with an account on that instance who uses the default web UI will definitely see a change.
Because keeping the default Lemmy UI but using the Sublinks backend won't allow for the use of the additional features (like moderation tools) of Sublinks.
The stated goals of who? I'm well aware of the stated goals of Sublinks, but lemmy.world hasn't stated any goals than a desire to have improvements to lemmy, helping the Sublinks development community (they're essentially part of that community) and considering the possibility of using Sublinks if it fits their interests more than Lemmy (which seems likely since they [lemmy.world admins] seem to be more a part of the Sublinks development community than the Lemmy development community)