Regarding wives in TiTS... unless marriages are not written into the game like Queen Taivra's was, we'll probably not get many of those, if at all.
If it is not written in, the it's probably an ending.
And realistically speaking, only notable crewmembers (the ones with quests) would mayhaps get an ending of their own.
So, perhaps Anno, Syri (after her crew expac makes it in after the JS port), perhaps Azra (she's still incomplete, so remote chance), perhaps Eitan (getting him aboard is a huge quest in itself), Kiro, perhaps Paige, perhaps Penny, Reaha, Sera and perhaps Shekka.
As for NPCs, there's so many that endings for them probably will not be written.
If it is not written in, the it's probably an ending.
And realistically speaking, only notable crewmembers (the ones with quests) would mayhaps get an ending of their own.
So, perhaps Anno, Syri (after her crew expac makes it in after the JS port), perhaps Azra (she's still incomplete, so remote chance), perhaps Eitan (getting him aboard is a huge quest in itself), Kiro, perhaps Paige, perhaps Penny, Reaha, Sera and perhaps Shekka.
As for NPCs, there's so many that endings for them probably will not be written.