Yeah, I honestly think that the thing which would kill modding in the future won't be any kind of (overtly) hostile action, it will simply be sheer inertia. Since the new "drop" system, pretty much every minor version requires rewriting many things in your mod, and modders find it hard to keep up, and there will be point when many mods just don't bother updating to the newest version.

The game used to be simple, both conceptually and codewise but obviously, it became more and more bloated the more developers touched it and the more bureaucracy was added. Now, it's a complete nightmare, and I bet it's also a nightmare for the developers too, considering how hard it is for them to fix even basic issues which have been in the game for like a decade at this point.