Those ideas seem to be good, i hope the lizardess brother/boyfriend one does not have a game over in case there need to be 2 different outcomes that allows you to still explore the world map and stuffs like the bandit camp did, also, his name might be revealed when you see him in the Fallen Temple or in the talk topics with the lizardess in the Ruins after seeing him in there.
The red lizardman in the Fallen Temple is her husband, the scenes that play out when finding him might give him away there when you talk to her about him after seeing him in there, hopefully he will have 2 different outcomes like the bandit camp one does and none of them leads to a game over, speaking of which, i was right about the cave users was mentioning previously, version 13.0 is when that becomes avaible to explore, either they have to get the Patreon version or wait until that version becomes avaible on Itch.io.