Who's going to be the next champion to die? (and how do they come back?)

Since Riot's sort of set a precedent (at least an example) of how character deaths in lore might work out in the future (character 'dies' and miraculously comes back with some changes to appearances. Maybe we'll have characters actually die and come back as undead, and in addition to changed appearances maybe have a reworked kit or something also, etc.). Hopefully, as it happens again in the future (which seems likely), the Narrative team will continue to find ways to surprise us (though I'm not sure many people actually believed GP was gone for good), but that's beside the point.

Anyways, I thought it could be fun to talk about future character deaths, and how Riot would bring them back. I'll start:

I know there were a lot of "jokes" about Riven dying, but she actually might be killed off at some point. Many Ionian characters have a bone to pick with her, notably Yasuo and Varus. I know some Reds and others have noted that because Riven has changed so much from when she was a Noxus lapdog, they might be able to work out their differences, but given how GP and MF used to be somewhat friendly (during Harrowing they teamed up), and MF still blew him up, I don't see it being outside the realm of possibility that the stories are changed such that there is more animosity between Yasuo/Varus and Riven, and I don't really see them going buddy cop movie like Graves and TF did, so conflict between them is probably going to be more lethal (of course Riven could also just kill both of them because Riven OP :3. Or they can all die; Yasuo's also being hunted down by Ionians, Varus is infected with some crazy stuff, and Riven certainly isn't going down without a fight)

As far as Riven coming back (no matter how much you want it, Riot's not going to delete a champion; maybe nerf them to oblivion and forget about them for several years, but not delete), I see a couple possibilities:

• Riven's on a path of redemption right now; I don't really see them changing this. I don't see her coming back as some vengeful spirit from Shadow Isles, but she might still feel like she has uncompleted work and come back as some sort of relentless spirit trying to redeem herself. Or, she might have accrued enough positive karma to come back as a positive spirit, perhaps with some celestial interference from the likes of Soraka/Bard, since they already reside around Ionia (though probably not Bard; he doesn't really care about humans, and I doubt Riven's death has some grander celestial importance)
• Riven might get Sion'd by Noxus; Sion was a posterchild for Noxus, as was Riven, so it's not unthinkable that they also necromancy her back into the game. Her personality would probably make a complete 180 though so not sure how they'd explain that, maybe she has more moments of remorse/flashbacks like Sion has.
• They cop out and Riven barely escapes with severe injuries. I doubt they'd go this route, though, because 1. They've already done that with GP, and 2. They've already done that with Riven, back when she got bombed by Singed.

Who else do you think is on the chopping block? Remember to have fun :P