Didn’t Molly mention having significant financial resources as Winter Lady …

Molly does have significant financial resources.
I'm not _at all_ clear that she didn't earn those herself.  I rather suspect she did not inherit any "Winter Lady Wealth" per se.

She gets the asset of Arctis Minor (which sits in the Nevernever, and she cannot sell), and she gets the powers of the Winter Lady's Mantle.

But a smart girl like Molly can leverage these things to an incredible degree.  I expect she could have become a multi-millionaire within a month of Mab releasing her from whatever "basic training" she had imposed.
 

The one I'm most looking forward to is seeing what equivalent upgrades darkside Harry got that lets him take on the Winter Knight in a duel

IIRC there's a WoJ saying that mirror!Harry is closely-allied with Mavra.
Suggests to me that he likely leaned-in on the necromancy.

If I recall correctly the "point of divergence" is supposed to be some event towards the end of Grave Peril.

I'm pretty sure this is correct, yes; specifically, it's a choice Harry makes.

Exactly what choice Harry makes -- the critical divergence -- is, I think, an important issue.

Suppose he takes Bianca's deal -- having "cost" Bianca her playmate, he lets Bianca take the (already half-turned) Susan from him.  Immediate consequence -- Susan is a fully-turned Rampire, and Harry's self-image is "I traded-away the woman I loved, to be safe."  Note this choice is actually foreshadowed in the book:  Jim wrote how hopeless and defeated Harry was feeling.

He didn't expect to win that fight; it was a last-ditch moment of inspiration to summon all the shades of the Rampire victims to get revenge (and a startlingly powerful act of necromancy, given how untrained / unpracticed Harry was; he's clearly a natural with necromancy!).

I'm sure many of us can project all sorts of futures from that divergence.

On the other hand, let's take the choice at the very end:  after all the action's over, Harry tracks Susan to a beach.  They talk; she leaves.

Suppose he didn't let her, argued/persuaded/cajoled, "let's just try, for a bit, you can always leave if it's not working," and half-Ramp Susan stayed in Chicago.  But, without going down to Latin America, she likely never came to the attention of the Order of St Giles, never got their specialized half-Rampire training, etc.  No Maggie Jr, no Red-Court Takedown at Chichen Itza.  I bet the Reds won the war against the White Council; maybe (probably) a few WC wizards survived... they likely all hate Dresden's guts for starting the war.

Etc...  I think I've seen at least half a dozen different "critical choices" proposed, with more or less convincing arguments.

...
No, both Susan and Murphy are now dead, give Harry his time to mourn and feel guilty and let's moved on.  There are plenty of dangling plot lines that haven't been resolved that could be addressed.  While perhaps they couldn't be resolved in the alternative plot line, they can teach Harry a lesson.

I expect so see both nods to the ST:TOS "Mirror Mirror" episode, and the old Jimmy Stewart "It's a Wonderful Life" movie:  Harry will get to see some of the upsides of him having been stubbornly a "Good Guy," by was of how much darker Mirror!Harry's Chicago is.

Murphy, in particular -- stuck in SI getting Black Cat cases, but without a reliable ally/guide in Harry Dresden.  Mirror!Murphy will know Mirror!Harry as one of the Bad Guys. 

She'll be a harder, colder, less-trusting Murphy.  One with less hope.  Fighting against the encroaching darkness without any of the info she got from Harry.

A very, very different person... named Karrin Murphy.
 

Hey-hey, there's life in the ol' dog yet!  (why tf the DFRPG isn't doing better, I'll never know... Jim Butcher is still writing 'em (albeit with a substantive lacuna before the massive PT/BG-duology)

SNIP a very interesting read, TYVM!

Wonderful stuff!

Ooh I like the catch of not working during times of Peace. I've been searching for a reason he would be involved in each and every war.

There's always some war going... somewhere.
https://en.wikipedia.org/wiki/Lists_of_wars

I think the Catch would need to have them directly involved, working for one side and/or against the other side.  They may (or may not) have some other agenda, for which the current war is more of a smokescreen or cover-story... Or, maybe they don't.

I don't recall reading about her. She wasn't in Mab's Sidhe legion that got glamoured, she wasn't in Molly's reinforcements.

Yeah, I'm pretty sure Lea was being Mab's proxy at the Outer Gates.

Because early on in the story, there was a big assault at the Outer Gates, evidently in coordination with Ethniu's assault (Harry remarked on it being telling, who (among the factions in Chicago for Peace Talks) appeared to notice & understand the implications); everyone seemed to think that (if all those Outer Gates forces were not urgently engaged) Winter could reasonably have shut down the entirety of the Fomor assault with no other help (though of course Ethniu & the Eye would always need something exceptional).

Super excited for a new Dresden novel. 

It would be nice to have an amazon placeholder for Twelve Months so it can be saved on TBR lists.  Any idea how to request the publisher to create one?

If I had to guess, I'd guess that Amazon does that based upon word from the boring bean-counters at the publishers, not the fickle & flighty remarks of creatives like authors (whose profession it is to invent falsity).

Fortunately for me, I don't have to guess!

Unfortunately for all y'all, I've done so anyhow ...

... she doesn't want any crap from him...

It's not a matter of "want" -- The Queenmantles are much stronger than the Knightmantles.
And Mab has been subject to one for about 1000 years.

Mab cannot help but punish Dresden's defiance; the demands of the Mantle are her ever-fixed mark.

Yes, as Queen, Mab does outrank her Knight, Harry, but when has a little thing like that stopped Harry?  No, she was giving him a firm lesson on who is the boss.

My point, though, is that I don't think the Winterqueen mantle permits Mab to allow the bearer of the Winterknight mantle to perform certain kinds of defiance; at least, not without rebuking him.

She actually likes his defiance... "finally," she says, "a knight who's worth the effort."