User blog comment:G0LD3NF1RE/E3 Elder Scrolls Online Roundup/@comment-13670863-20130728080941/@comment-3124449-20130728145422

That could be interesting, but it won't happen. Mods for singleplayer TES games are the closest you will come. By the way, there are a few multiplayer mods in the works for Skyrim.