I wonder how further Oceanians could've developed then OTL. How do we keep more of the native polities and institutions in facing European encroachment ? Perhaps Tu'i Tonga could've retained some of its empire, or Tahitian monarchy could've survived, etc. What about the Yap or Nan Madol Empire in Micronesia ? Could have they achieved more sophisticated level of development than what they had already managed IOTL ?