Sorry about that. Here, let me try again with less snark:
English isn't their first language. Software Development isn't their first career. When they said Scope, they were clearly trying to describe a status that is analogous to "Feature Complete". They may add "Content" but they will probably not be adding major "Features".
Why do I interpret it this way? Well, here:
http://forum.kerbalspaceprogram.com/content/313-Beta-Than-Ever-The-Future-of-KSP and here:
http://steamcommunity.com/games/220200/announcements/detail/134310928147086385They say "Scope" but what does that mean and how do they define it? Check it out:
This then is the version that makes the game ‘scope complete’: every major feature that the game was designed to incorporate now exists
KSP now has all the features we considered vital to be in the game that we designed so many years ago. It doesn’t mean the game has everything we want it to have, it means everything we considered necessary for it to be Kerbal Space Program exists, even if only in a minimal form.
Scope completion means that every big system that the game needed is there
No more groundwork, no more laying down infrastructure. We’ve finished building the kitchen, it’s time for us to start cooking.
I'm not taking this stuff out of context, this is exactly what they are saying. The links are right there, they don't go on in the next sentence to say "oh, and we might still add major features".
What they /ARE/ talking about adding, is "Content". A new MK3 cockpit interior isnt a feature, it is content. The features to support it are already there, its just some extra meshes and textures and shit. Adding another Gas planet or two isnt a feature, it's content. Tweaking the aerodynamics is fiddling with existing code. Even adding additional Kerbal skills is mainly just content development.
A resource extraction would be a major feature. It would require, to use their words, laying additional groundwork.
Now, they've gone against what they've said and what they've roadmapped before, so this isn't 100%, but I feel like it is pretty likely.
And what it means for multiplayer? How committed are they, do they consider it to require extra groundwork? Totally up in the air. Again, it is a great program, they have great community out reach, but they're kind of making it up as they go.
And on resources? They've already clarified that when they say "Resources" they don't mean "Mining" so I really wouldn't hold my breath:
http://forum.kerbalspaceprogram.com/threads/61997-Article-KerbalKon-Announcements?p=844430#post844430