The only episode that dealt with choice and free will was The City On The Edge Of Forever. It looked at how changing one event with the best of intentions creates great evil over time.

Ah, but is it a process of pressure and change, or is it a process of polish and refinement?  One could argue that the events that “changed” you in actuality only revealed a truer facet of your soul than had previously been perceiveable–that those events only changed you inasmuch as a rough diamond is changed by a master jeweler’s tools.  The diamond doesn’t become an emerald–it just becomes a more beautiful and quinessential diamond.

(Just Devil’s Advocating here, for the most part, and throwing that thought out.)

In any case, it may just be possible for a person to change enough for a soulgaze to reveal something else–but it would have to be an utterly incredible kind of change.  Something along the lines of the billionaire executive who, after a near-death experience, gives all his worldly goods to charity, leaves home in his pajamas, and takes up a life of underwater basket-weaving and meditation.  And even that seems a little mild to me, thinking of it.

Anyway, it’d take a truly epic change of heart and mind–to the point where you would practically *be* a whole different person, and not just a person who happens to be you with a lot more life experience to inform his outlook.

(And, in fact, there’s all sorts of theories about people who this happens to after a near-death experience, regarding “walk-in” souls who come and inhabit a person near death, changing them and becoming a kind of inner Yoda to the “native” soul.)

All of the above, of course, is more or less a discussion of angels dancing on the heads of pins, but it’s fun.

But it is weird that Hendricks is not with Marcone, right?

It won't be lovely on his side, but we won't know what Murphy sees, only how she reacts. But we will see what he sees, and that would be lovely because I don't think fundamentally is going to be that different to what he saw under his Sight.

That is it. Because mirror. Harry made the wrong choice mirror reality is crumbling despite’s Mirror Murphy the Valkyrie’s desperate efforts to prevent it. At the last moment she and Harry escape the mirror world to Harry ‘s original world and together they promise each other to do everything to save this world from the outsider collapse.

Yeah. It's kind of an important plot point that Dresden has returned from the dead and wasn't just dead in some technically medical sense or something. That's why he's going to be noticed by beings that would have ignored him before.

Perhaps Harry the White will have a chance to speak with Eihenjaren even if they are not allowed to come back to Earth yet? 

   All well and good, but what is the point of all of this?  How does it further the story?

Well Mirror Mirror Murphy is actually a valkyrie and can stay at Harry’s side until the end

She is not inlove of his Harry, she probably is not her friend either, but her character is the same. So when she sees our Harry she will react more or less like our Murphy would. And Harry would have a lovely memory of her for ever.

"Because we don't like that Murph is dead" is literally the main reason for everyone saying she needs to come back from Mirror Mirror/Gard was wrong and she can show up as a Valkyrie/Whatever other third reason.

Which, fair enough, there are characters I'd like to see again (in both this and other series). But realistically speaking most of the time characters are killed it's because their part in the narrative is done.

So no, there's no real furtherance in the story in bringing Murphy back. But yeah, people will miss her and want her to return.

And we may see non powered up warrior princess Murphy in the BAT when the rules are thrown out the window, but by then the Murphy we knew is long gone. She may not even have her memory anymore