Just a few quick things I picked up that I wanted to throw out there.
First of all Fujin said he would meet you in "earthrealm", nobody has seen him there yet.
Secondly, we cannot get back to the very beginning of earthrealm to see if any new items have popped up or if we are able to enter the temple where "only monks may enter" or open locked doors with the lockpick. Maybe the "key" opens the temple where only monks are allowed.
Thirdly, after you finish conquest the Dragon King says you are missing the medallion that is located in Outworld that would have sent all the Kamidogas to the elder Gods.
May mean nothing but I wanted to mention a few things I noticed.