This reminds me, have all Sinister's secrets been resolved?
Orchis: Since Duggan is taking over, they might just show up as generic villains now until the final act, whenever that is.
Mars: Set piece that might show up once in a while
Franklin: Don't bother. His fate depends on Slott now.
Cardinal and Rasputin should show up since Hickman was hyping them up in House and Powers.
Nimrod: Generic villain.
Post-humans: Might show as generic villains like we saw in X-Force.
Moira: I'll wait until Inferno to complain
Apocalypse: Off the board unless Tini Howard or someone else brings him back.
Sinister: ¯\_(ツ)_/¯
Douglock: Nothing's gonna happen since no one's used Doug since he got married and Warlock is stuck in New Mutants which is dragging out one simple storyline forever.
Phalanx: Probably Duggan and/or Ewing will do something with them?
Vault: Ongoing since we still need to know the effects of them getting Darwin's bio-data.
Arrako: Can't be done since we know that they have their own council and we still don't know if they're 100% loyal to the X-Men.
Whoredeculture: Don't care.
Mystique and Destiny: Destiny might come back but I don't until Inferno drops.
Xandra: SWORD stuff or dropped
Brood: SWORD stuff or dropped
Vulcan: dropped
Sidri: dropped
Sea witch key: dropped
ZA WARUDO: dropped
"Cable was right!"
We have a Brood appearing in the New Mutants preview and Broo is mentioned.
"Danielle... I intend to do something rash and violent." - Betsy Braddock
Krakoa, Arakko, and Otherworld forever!
Apart from the Destiny/Moira/Mystique and Orchis/Nimrod plots which he's dealing with in Inferno...I'm quite okies with everything else being dropped completely or given minimal preference elsewhere, whenever.
Lord Ewing *Praise His name! Uplift Him in song!* Your divine works will be remembered and glorified in worship for all eternity. Amen!
Eh, it never will, but I say that as part of the nature of the character. Sinister's the type of character that's designed where every writer will have an opportunity to add a new secret, built that way by Claremont.
Whatever secrets Hickman had in store for Sinister would be hard to tell if the resolution came from Hickman or taken in a different direction by future writers, but every time Sinister reveals one answer, he gets at least two more secrets.
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As for Hordeculture, I enjoyed seeing them in the latest Man-Thing mini-event crossover, and I'd love to see them in more and more books outside the X-Men (though they were written very generically in Children of the Atom).