Is A “Yu-Gi-Oh!” and “Wixoss” Crossover Possible?

I was wondering if there would be a possibility of a crossover of two card-game anime like Yu-Gi-Oh! and Wixoss (the Selector Series) since I have gotten into them.

But for those who have seen the Selector Wixoss series, I have seen from other posts like on Reddit for example explaining how that Wixoss anime series is darker and more mature than Yu-Gi-Oh!

(https://www.reddit.com/r/TrueAnime/comments/26vefh/deconstructing_childrens_cardgames_selector/)

I find that funny because the late Kazuki Takahashi had made Yu-Gi-Oh! dark in many ways. And other story writers for other series that followed also had dark, mature, and really sad moments.

Here is a list:

Yu-Gi-Oh! Original Manga and Duel Monsters Anime:

  • Yami Marik
  • Atem’s Penalty Games
  • Pegasus‘ Mind Card Ability with the Millennium Eye and his monsters like Relinquished, Thousand-Eyes Idol, and Thousand Eyes Restrict
  • Jonouchi Supposed Death at the hands of Yami Marik
  • Dartz and the Seal of Orihalcos
  • Atem losing Yugi to the power of said seal
  • Bandit Thief Bakura and Zorc in Ancient Egypt
  • Seto despairing over Kisara’s death
  • The deaths of Atem’s friends
  • Marik suffering from the extremist torture trials of the Ishtar forefather

Yu-Gi-Oh! Dark Side of Dimensions:

  • The Power of the Quantum Cube
  • The Cubic Monsters
  • Diva/Aigami’s monstrous form in the climax of the movie

Yu-Gi-Oh! Duel Monsters GX:

  • Doll Chimera
  • DD revealing the victims inside Destiny Hero Bloo-D
  • The Supreme King
  • Yubel

Yu-Gi-Oh! 5D’s:

  • The Dark Signers and their Earthbound Immortals
  • Scar-Red Nova
  • Divine and his Arcadia Movements’ Horrific Experiments on the Young
  • Bruno and Aporia’s Deaths
  • The Revelation of the Dark Future of Neo Domino City
  • The Onslaught of the Meklord Emperors
  • Aporia’s Dark and Sad Past Caused by said Machine Monsters
  • Paradox’s plan

Yu-Gi-Oh! ZeXal:

  • Tron/Byron toying with Kaito by changing is face to that of his little brother, Haruto
  • Vector and his actions like betraying Yuma to killing his fellow Barian Emperors
  • Dark ZeXal’s transformation and the brutal battle of Chimera Hope Ray V and Shining
  • IV/Thomas tormenting Tetsuo and Todoroki with his Number 15: Gimmick Puppet Giant Killer and Xyz Colosseum Combo
  • Don Thousand and his plans that involved interfering with the memories and lives of the Seven Barian Emperors
  • Vector’s Heroic Sacrifice
  • Ryouga as Nasch’s Death After Dueling Against Yuma and Astral

Arc-V:

  • The Doktor and Parasite Insect Monsters
  • Sergey
  • Yuya Awakening to his Zarc powers like with Odd-Eyes Raging Dragon
  • Zarc’s Past
  • The Supreme King Dragon, Zarc

VRAINS:

  • The Knights of Hanoi Destroying Link VRAINS
  • The Dark Truth of the LOST Incident where six children were kidnapped and experimented upon to create the Ignises
  • The Death of Earth at the hands of Queen and her cronies at SOL Technologies as they dissected him
  • The Deaths of all the Ignises inside Bohman
  • The Death of Ai in the final episode

So Yu-Gi-Oh! feels no different from Wixoss with such dark moments.

So what makes them still different despite the dark moments I mentioned?

And would a crossover between these two franchises be possible?