Here's a list of planned things for the addon. The development and release of each feature may vary, depending on what will be easier to add and what mood I'll have for it. Although I have roughly sorted this list from most to least priority for me.

Survivors that exist in the original game but have not yet been added to the addon will be added as soon as I will be able to. There's no need mention their existence, as I am personally interested in seeing new characters in DBD and do know about them already. Same goes for the legendary outfits.

I consider this feature to be necessary, as it is a basic mechanic from the original game. Additionally, it makes the bots appear more alive and connected to each other. Though, it's pretty complicated to add this for me at the moment.

For now, I'm stuck with these three — generators, pallets and hatch. But the appearance of other objects is also not excluded in the future.
I'm also considering adding a possibility for survivors to use such things from the DBD Nextbot Pack addon like lockers and killer related objects, which is also requires some experiments, though.

I'm thinking of a medkit, toolbox and flashlight for now, but we'll see what happens next.

To do this, special tools will be added, similar to those that create nodegraph and navmesh. This will be the ability to tell survivors where they can run from enemies by creating some vault points and loop paths.

At first, I thought about adding only the free available cosmetics from the original game for each survivor. I'm considering adding the most popular cosmetics, but overall this is still thing in plans.

These things sound cool, but they require collaboration with Jmar (the creator of the DBD Nextbot Pack addon), cause indeed it must involve code updates not only of the survivors, but also of the killers.
At the moment, I'm making all the possible innovations that depend on me and they're easy to do so. Will look forward to add these features in the future, though!