I'm not wild on using Angrod, I'd rather use a great-grandson of Finwe, but Angrod's much better than getting rid of yet another a wife. If we used Angrod, I suggest that he dies either in the War of Wrath, or in an escape attempt, rather than coming out alive after the First Age ends.
I forgot Amarie, Idril, and Earwen. So now we have:
Female Elves --
Celeborn's mom - unnamed, not characterized at all, current plan is that she was fridged in Season 1
Miriel - developed character, had to die
Nerdanel - developed character, had to stay behind
Indis - had to stay behind, I don't know how much she was developed
Anaire - had to stay behind, I don't know how much she was developed
Amarie - had to stay behind, I don't know how much she was developed or if she was even in the show
Earwen - had to stay behind, was killed instead, I don't know how much she was developed
Irime - written out, I don't know how much she was developed
Elenwe - had to die, but got almost no characterization
Edhellos - fridged, probably won't be characterized
Curufin's wife - fridged, probably won't be characterized
Maglor's wife - unnamed, and the current plan is she doesn't even exist
Caranthir's wife - unnamed, and the current plan is she doesn't even exist
Aredhel - has to die next season, hopefully will be developed before then, but I find it hard to call a willing abuse victim "strong"
Finduilas - has to die, hopefully will be developed before then
Luthien - strong woman
Idril - strong woman
Galadriel - strong woman? or gullible fool easily manipulated and exploited by Celeborn?
Celeborn's sister - ?
19 female Elves, 1 hasn't been born yet, and 14 will be written out by mid-Season 5. That's 74% of all our female characters, eliminated very early.
Instead we could give Celeborn's mother and all three Feanorian wives actual story roles, names, and personalities. We could introduce Irime's daughter and Fingon's wife, and give them actual roles, names, and personalities. We could give Edhellos a role and personality, and maybe not kill her off either. We could have 5-6 more female characters for several seasons, and give them a reason to exist.