With Japan and China intent on joining a competitive fray that has been largely focused on Taiwan and Korea, the two-way battle for supremacy may at any time develop into a four-way tangle, further complicating the scenario.
值得注意的是，台韓相爭再加上虎視眈眈的日本和中國，兩強爭霸隨時可能成為四國的合縱連橫，也將讓戰局更為複雜。