Shall We List Our Finale Theories....

She called earth New Daxam. I think she was lying about Daxam being a livable planet again, she wants to rule earth and treat humans like ants who are below her.

It's hard for me to really say. My gut says that you don't mess with the Luthors and Lillian takes out Rhea in a battle royal. Another possible outcome is that Mon-El orders Daximite forces to stand down and withdraw while at the same time abdicating.

As for Lena, I wish only the best for her and I hope that she discovers Kara's true identity in a way that strengthens their friendship. Remember, her eyes popped open when Kara said "and I will always protect you." In Ace Reporter. I think she more than strongly suspects.

I just hope that Kara, Mon-El, and Lena survive this intact.

Argo

Depends on whether Rhea is still after Mon-El. It could just be a revenge mission against Earth.

Supergirl and the DEO have to work with Cadmus to defeat the Daxamites. Rhea doesn't survive. Lillian does survive and Cadmus uses the alien invasion to further it's anti alien agenda and becomes a perpetual thorn in Supergirl's side. Kara admits to Cat she is Supergirl.

There's probably some Daxamite custom where you can challenge their leader in battle for control of the throne. Kara challenges Rhea and beats her, but Rhea says her victory is invalid because she's a Kryptonian (or something) and orders her forces to attack anyway. Just before they attack, Mon El takes control of the flag ship and orders the fleet to stand down. In a rage, Rhea tries to back-stab Kara, but Lillian kills her at the last second.

Whatever happens, I really want to see Lillian or Lena in Lex's battle suit.

After seeing more pictures....

I'm thinking Lena doesn't want to marry Mon-El, and she hasn't been led away into the dark side by Rhea. She definitely is about to find out who Kara is BECAUSE she's going to find out who Mike is. Just really hoping we get to see a Kara/Lena heart-to-heart after the truth is revealed. I'm starting to think that perhaps she doesn't find out from Rhea OR Kara....but rather, when she sees who Mon-El is? Since we see them in the Fortress, and Lena is in the red dress.... either they forge a secret plan for her to marry him to usurp power of the army, or...those pictures are from after they defeat Rhea or at least, after they rescue Lena before the war begins--leaning more to the later since the dress looks Daximite (Daximitonian? Daxi? lol)

Is the alleyway where it finally happens--Cat reveals that she knows who Supergirl is? Perhaps she reveals she's always known since the night on the balcony, and realized she had to pretend not knowing because she came to realize how much Catco meant to Kara and Kara's "balance"?

Super stoked for Monday like I haven't been for quite awhile.

If Lena didn't know Kara was Supergirl, she sure does NOW....well hello....MIKE.