I hope Defenders are better and not rushed like Luke Cage

so do we all think Hela will have the soul stone?

Yes.

but... what if they're gonna go the Thanos/Death route with Hela instead of actual Death? is he gonna come up to her like, "hey sis, Imma need that stone so I can destroy half of the universe to impress you"? it'd make more sense if Heimdall had it in this case (but I still think it's Hela)

plot twist: soul stone is gonna be introduced in the defenders or the inhumans
d I wish, Feige's petty ass would never allow this

Soul stone is def coming from Hela in Thor or from Black Panther

anyone play Marvel puzzle quest?

turns out that it's an unused design for one of the Zealots from Doctor Strange

Aww, I liked that design.

Is Hela going to be taking Mistress Death's role or are they going to be separate characters?

a lot of people think she might. it'd definitely make sense and it'd be less confusing for the audience if we had one "goddess of death" instead of two, because the characters are similar. also, Cate Blanchett is a well-known actress so I'd say they want to use her in as many movies as possible.
but then again, if she really has the soul stone, Idk how they're going to explain the whole Thanos' gauntlet storyline.. maybe he will come to her and be like "you have something what I need and if you'll give it to me, we can rule the universe together" or something like that and he will eventually fall in love with her? there's quite a few possible outcomes and I guess we won't know anything for sure until we see the next Avengers movies