This will probably never happen. If anything, we'd just code our own version of the mods into the game using plugins. We try to avoid using mods and plugins that we haven't developed ourselves because if, for instance, we have a problem with a mod or a plugin breaks or something, we're kind of at a loss as to what to do, because the code isn't our own and we're unfamiliar with it. (This is why we'll probably never have McMMO, tekkit, pixelmon, or other popular plugins/mods)