If X character dies at some point during the season 2 of Arcane, that market resolves as YES. Dying and then reviving counts as YES.
Feel free to add more options.
The market's closing time will be extended until all episodes of Arcane 2 are released.
The end of Arcane 2 is pretty unclear regarding some characters in this question, but I think this resolves as YES to: Rictus, isha, Warwick and Jinx. All other characters as NO.
I think the show hints that Jinx sacrificed herself to save Vi taking her own life and Warwick's, I thought this when watching the show, and read several articles that also believe this happened.
There is unconfirmed speculation that both Jinx and Warwick survived the grenade blast. I think it's more likely that Warwick could have survived the blast rather than Jinx, since Warwick survived Isha's explosive shot using Jinx's weapon, but Isha didn't. Warwick could resolve to N/A for this reason, however I'm more inclined to think it resolves as YES for both. Another support for Jinx dying is that when she was planning to die by her own hands, she was planning to use the same grenade she used at the end.
Feel free to propose other resolutions, and explain why. For the unclear characters we could resolve as N/A. If the character died at any point during Arcane 2, even if revived afterwards, it resolves as YES according to the instructions.
Some articles about this:
1 https://www.redbull.com/int-en/what-happens-after-arcane-finale#1-did-jinx-die-at-the-end-of-arcane
2 https://screenrant.com/arcane-season-2-character-deaths/