Gemmysaur said:
Base Thanos has zero means to destroy the entirity of Asgard, and won't even know of that weakness, both of which requires intel.

Hela pincushions.
That said, I want a big sister Hela fanfic.
I'll raise you one better. Hela X captain marvel, after exposure to the reality stone gives Carol her powers, she begins to dream of Ragnarok and Hela. Whist dreaming she's astro projecting herself to wherever odin sealed hela. During the course of those nights, hela is shown to be redeemable. And remorseful, that her warmonger zealotry alienated even odin. But she did so, because that's what she believed would please him. And that she wanted to be a good ruler.
In turn for, carols company, she helps her to. Master her power, (in an intimate fashion. Carol is uneasy about that aspect, and thus never says anything) whilst doing so, gets flashes of the infinity stones and Thanos. This concerns her,, she says she'll whatever is needed to prevent that Ragnarok. (She never see's surtur, whilst carols thinks that's thanos.)
The movie ends them parting ways, with Carol going into space, because of the encroaching kree;and the then more accepting opportunities of xander/space, and Hela saying she'll meet on her on Asgard, whilst she deals odin and trys to get heimdall's sword, to summon her to asgard. (which is why she doesn't use the space stone, because time dilation applies) In the duration, Carol is in space waiting for hela and fighting the kree/working for the nova core. The end credit stinger, is after ronan attacked xander. Carol is entrusted to protect the power stone, then after Ego's plan she goes to check on the power stone, but when she holds the orb, it resonates. Showing her the tesseract and a vision of valkyrie and the devil's anus. During this, she gets a message from strange saying to let the orb be taken when the time comes, stating this is an endgame against Armageddon. Carol doesn't realise that, it wasn't a double speak for Ragnarok. And leaves for saakar. By the time, the she arrives Ragnarok has occurred, the devil's anus seals itself, and but not before Hela comes falls through, bridal style save/carry. Touching embrace, and full blown homo-erotic stares that causes minor area disruption because of their powers. As they lean into kiss (Carol, is much more confident and in a reversal Hela is the passive one) Carol's beeper goes off, saying Armageddon is occurring. (with furys headstone quote, in urdu, proceeding it). The final line is, Carol saying they need to get to earth immediately, and Hela says any of these portals May lead them there or lose them somewhere, but I'll happily get lost anywhere with you. Jeff goldblum appears; opening a portal, but fading away. "saying I knowhere, the place to be lost is. Not here.
Final scene on a ship after doing multiple jumps from knowhere to earth. Holding hands the camera pans to earth.