I have a theory that Sanderson has trapped Butcher, Rothfuss, and Martin in hive-mind cocoons and is using their combined skills to churn out his 3.5 stories/year catalog.

I don't have any evidence yet, but I'll share it when I do.

As much as I want him to have a door like the one in Cold Days, I don't think he'll have one anytime soon for a few reasons, some Watsonian, some Doylist.

• D: It's too easy. Too convenient.
• W: Even if it's just basement to outhouse, it's still a huge security risk.
• D: Butcher bothered to give Harry a ruby of ways, and figuring out ways, and has hardly used it.
• W: I agree that the power requirement is beyond Harry's ability to sustain a direct link.

I figure he'll use his mom's ruby in Twelve Months to find a Way to the island that's only a few hops. But I could see a door being made later in the series that's sponsored by Alfred and has prison-and-Gate style wards on it to keep baddies out.

I mean come on, I could totally see some sidhe finding a missing pantry door at the outer gates, and another just shrugging and saying, "Dresden".

Does anyone think Eb doesn't show? He will bitch and moan, and then tell Langtry he's going. Period. Uses the "He lived with me for 2 years" excuse. 

You know, i could see Archleone as smug enough to show....

Mac get an invite?

Eb killed Harry because of his rage over his relationship with Thomas. Unless Eb gets therapy over the next year, I don't see him being fine with a wedding.

Mac will probably cater.

Yeah, when I put Michael up for best Man I forgot it would be the worst stag party ever.... though I don't see tea shop. Michael would have everyone over to his backyard for a cookout. Burgers and beer. And remind anyone who may think of having too many - there are angels ON THE ROOF watching you....

I could see strippers showing up in the backyard and everyone assumes it was Thomas, but it turns out Bob ordered them online. 

It’s a political event, so most of the Accorded Nations will be there. Think a Royal Wedding where Heads of State and Government are invited.

I'm not entirely sure about that.

• The White Council could boycott because Harry is persona-non-grata (and his two closest relationships are seriously pissed about him being friendly with Lara).
• The Svartalves are likely still not pleased about the assassination attempt and subsequent kidnapping of the attacker, by the two people getting married no less.
• The ghouls don't like Harry any more than he likes them.
• The Denarians seem to be out after their SmF betrayal, and they wouldn't show anyway after Harry's involvement with Deirdre's death and Nico's loss of standing.
• I don't see the Erlking caring for such things. I imagine he shows up only for what he has to.
• Same for Ferrovax.
  
• Marcone will show up even though he wouldn't want to. He can't let an event like that happen in his town without being a part. Especially if he wants to make sure he doesn't start getting cut out now that Mab knows about the coin.

So I think it'll be Winter/White/Summer Courts, plus River and maybe Vadderung if he's got nothing better to do, and Marcone out of necessity.

We know he's going to be summoned by negaHarry to be killed in his place.  I think that's got to be a solo trip tbh.  None of the other summonings we've seen have included multiple beings.  Besides, I think that you'd need a True Name for a mortal to summon another mortal across realities, much less have the magical oomph to pull in someone else for the ride.

primeChandler will be the touchstone for Harry to get real information about the mirror reality and what's different.  Also, probably one to give him inside information on who's gunning for him suddenly in the WC to call to vote him out.

I agree for the most part, but the only inter-reality travel we've seen was via a gateway (a la Drakul). So imagining it as a vortex isn't out of the realm of possibility.

I could also see it as something building up around him, and someone with super strength (Lara perhaps) grabbing him tight and then getting pulled along.

Not that I think that'll happen, but it makes me wonder if he might not go alone.

Eh, Downer Ending seems like an idiom to me. And... was Cold Days or Ghost Story really that much more idiomatic?

Tha said I'm not gonna claim they were all brilliant :p

I'd say they were common phrases. Skin Game might be the least common, but other than that one, nobody has to guess at the meaning of each book title. I'm not sure that "Downer Ending" is common enough knowledge to be both a known phrase and also an illusion to the events of a book about a wedding and manhunt.

And besides, it'd be too much of a spoiler. He couldn't name Changes "SNIPER BULLET". 

Do we know for sure Harry will be going to the mirrorverse alone? Logically it seems likely, but if he's with someone else (like standing at the altar for his wedding) and some magical thing kicks in, and someone close to him (like Lara or his best man or the minister) grabs for him, could they be pulled in as well?

Updates made!