MOVES magazine issue #62 (April-May 1991), pgs. 36-37, published "Expanding Horizons for Strategy & Tactics The Far Seas (#125)" by James E. Meldrum, which provides for 6 variants {1 historical, 4 what-ifs, and 1 optional rule}.
MOVES magazine issue #75 (April-May 1993), pgs. 43-44, published a "Goeben Variant" by William M. Marsh, which is not a separate scenario, but is incorporated into "The Far Seas" by adding a Pregame Turn, as well as new units, rules, options, and VPs. This Variant also provides for overseas deployment of German and British BCs, with increased possibility for a North Sea showdown.