If the CP win in 1918, then I can see an increased German influence in the region, thanks to their accusation of Indochina. They would probably replace the French influence, but not the British, since I doupt they would be defeated like Freance could have been.
The Dutch East Indies would remain under Dutch control, athough they would be apart of the new Europäisch Zollverien and Mitteleüropa, so there will be some German influence there as well.