Perhaps maybe in Grand Admiral bullpen instead, but would love to see a Pacific variant. Not a ton to start with. Here are 5 possibilities from wikipedia:

German naval actions
Retreat of the German East Asia Squadron In the Pacific

Scharnhost‍ '​s and Gneisenau‍ '​s path across the Pacific.

Chile and the Falklands
(This one covered)

SMS Emden in the Indian Ocean

The scuttling of SMS Cormoran at Guam

Some other possibilities would be German raiding on Merchant Ships near Japan, and Japan responding with a full scale hunt for German East Asia Squadron. That would add the entire IJN.

Another thought could be to develop a game around War Plan Black

One of the United States color-coded war plans, War Plan Black was the name of an American military plan to fight Germany in the early 20th century. The best-known version was conceived as a contingency plan during World War I in case France fell and the Germans attempted to seize French possessions in the Caribbean or to launch an attack on the eastern seaboard. The United States was to plant mines and have submarines on patrol at sites Germany might seize for a foothold in the Caribbean. The plan was revised in 1916 to concentrate the main US naval fleet in New England, and from there defend the US from the German navy.